From 99fe296eb2d5461b42ad07f5923e4f5677cd54a3 Mon Sep 17 00:00:00 2001
From: Dan Poltawski <dan@moodle.com>
Date: Fri, 30 Sep 2016 09:22:02 +0100
Subject: [PATCH] MDL-55168 css: remove 0-length units

---
 admin/tool/behat/styles.css                 |  2 +-
 admin/tool/health/styles.css                |  6 +--
 admin/tool/lp/styles.css                    |  2 +-
 blocks/community/styles.css                 | 26 +++++------
 blocks/settings/styles.css                  |  2 +-
 grade/import/direct/styles.css              |  4 +-
 grade/report/singleview/styles.css          |  2 +-
 lib/editor/atto/plugins/equation/styles.css |  2 +-
 lib/editor/atto/styles.css                  |  2 +-
 lib/editor/tinymce/styles.css               |  2 +-
 message/output/airnotifier/style.css        |  4 +-
 mnet/service/enrol/styles.css               |  4 +-
 mod/assign/feedback/editpdf/styles.css      | 46 ++++++++++----------
 mod/assign/styles.css                       | 26 +++++------
 mod/book/tool/print/print.css               | 30 ++++++-------
 mod/chat/gui_ajax/theme/bubble/chat.css     |  2 +-
 mod/data/styles.css                         |  2 +-
 mod/forum/styles.css                        |  2 +-
 mod/glossary/styles.css                     | 14 +++---
 mod/scorm/styles.css                        | 16 +++----
 mod/wiki/styles.css                         |  2 +-
 mod/workshop/allocation/manual/styles.css   |  4 +-
 mod/workshop/allocation/random/styles.css   |  2 +-
 mod/workshop/styles.css                     | 48 ++++++++++-----------
 question/type/multichoice/styles.css        |  6 +--
 25 files changed, 129 insertions(+), 129 deletions(-)

diff --git a/admin/tool/behat/styles.css b/admin/tool/behat/styles.css
index 8300294de3606..8c5634ad757c0 100644
--- a/admin/tool/behat/styles.css
+++ b/admin/tool/behat/styles.css
@@ -8,7 +8,7 @@
 }
 
 .steps-definitions .step {
-    margin: 10px 0px 10px 0px;
+    margin: 10px 0 10px 0;
 }
 
 .steps-definitions .stepdescription {
diff --git a/admin/tool/health/styles.css b/admin/tool/health/styles.css
index df34febb0fd57..ec486afdf188d 100644
--- a/admin/tool/health/styles.css
+++ b/admin/tool/health/styles.css
@@ -39,7 +39,7 @@
 
 .path-admin-tool-health dl.healthissues dt,
 .path-admin-tool-health dl.healthissues dd {
-    margin: 0px;
+    margin: 0;
     padding: 1em;
     border: 1px solid black;
 }
@@ -67,8 +67,8 @@
 }
 
 .path-admin-tool-health dd.solution p {
-    padding: 0px;
-    margin: 1em 0px;
+    padding: 0;
+    margin: 1em 0;
 }
 
 .path-admin-tool-health dd.solution li {
diff --git a/admin/tool/lp/styles.css b/admin/tool/lp/styles.css
index 96d5bd8877900..e811b9a66d0d0 100644
--- a/admin/tool/lp/styles.css
+++ b/admin/tool/lp/styles.css
@@ -196,7 +196,7 @@
 /** check box and radio button on configure scale dialogue */
 input[type="radio"].tool_lp_scale_default,
 input[type="checkbox"].tool_lp_scale_proficient {
-    margin-top: 0px;
+    margin-top: 0;
 }
 
 /** User evidence */
diff --git a/blocks/community/styles.css b/blocks/community/styles.css
index 5145f34ae6aaa..c6704e6cc49ec 100644
--- a/blocks/community/styles.css
+++ b/blocks/community/styles.css
@@ -152,16 +152,16 @@
 }
 
 #page-blocks-community-communitycourse .hubcoursetitle {
-    -webkit-box-shadow: rgba(0, 0, 0, 0.546875) 0px 0px 4px;
-    -moz-box-shadow: rgba(0, 0, 0, 0.546875) 0px 0px 4px;
+    -webkit-box-shadow: rgba(0, 0, 0, 0.546875) 0 0 4px;
+    -moz-box-shadow: rgba(0, 0, 0, 0.546875) 0 0 4px;
     background: #8b8989;
     left: -15px;
     position: relative;
     z-index: 0;
-    border: 0px;
-    margin: 0px;
-    outline: 0px;
-    padding: 0px;
+    border: 0;
+    margin: 0;
+    outline: 0;
+    padding: 0;
     vertical-align: baseline;
     color: #fff;
     padding-top: 6px;
@@ -210,7 +210,7 @@
 #page-blocks-community-communitycourse .star-rating {
     list-style: none;
     margin: 4px 0 4px;
-    padding: 0px;
+    padding: 0;
     width: 100px;
     height: 20px;
     position: relative;
@@ -219,8 +219,8 @@
 }
 
 #page-blocks-community-communitycourse .star-rating li {
-    padding: 0px;
-    margin: 0px;
+    padding: 0;
+    margin: 0;
     height: 20px;
     width: 20px;
     float: left;
@@ -278,7 +278,7 @@
     position: relative;
     cursor: pointer;
     background-color: #8b8989;
-    margin-left: 0px;
+    margin-left: 0;
     font-size: 80%;
     margin-top: 15px;
 }
@@ -333,8 +333,8 @@
 }
 
 #page-blocks-community-communitycourse .moodle-dialogue-base .moodle-dialogue-wrap {
-    -moz-border-radius: 12px 12px 0px 0px;
-    -webkit-border-radius: 12px 12px 0px 0px;
+    -moz-border-radius: 12px 12px 0 0;
+    -webkit-border-radius: 12px 12px 0 0;
     background-color: #fff;
     border: 1px solid #555;
 }
@@ -349,7 +349,7 @@
 }
 
 #page-blocks-community-communitycourse .moodle-dialogue-base .moodle-dialogue-bd {
-    padding: 0px;
+    padding: 0;
     margin-bottom: -5px;
 }
 
diff --git a/blocks/settings/styles.css b/blocks/settings/styles.css
index d3432ac3a0d44..e0c94b2bad631 100644
--- a/blocks/settings/styles.css
+++ b/blocks/settings/styles.css
@@ -25,7 +25,7 @@
 
 .block_settings .block_tree .tree_item {
     cursor: pointer;
-    margin: 3px 0px;
+    margin: 3px 0;
     background-position: 0 50%;
     background-repeat: no-repeat;
 }
diff --git a/grade/import/direct/styles.css b/grade/import/direct/styles.css
index a5b5a5550da3a..fb1e634f978c3 100644
--- a/grade/import/direct/styles.css
+++ b/grade/import/direct/styles.css
@@ -1,5 +1,5 @@
 .gradeimport_data_area {
-    margin: 0px 0px 10px;
+    margin: 0 0 10px;
     width: 475px;
     height: 209px;
-}
\ No newline at end of file
+}
diff --git a/grade/report/singleview/styles.css b/grade/report/singleview/styles.css
index 7fecfb6f35f4d..80cab39c614fc 100644
--- a/grade/report/singleview/styles.css
+++ b/grade/report/singleview/styles.css
@@ -12,7 +12,7 @@
 
 .path-grade-report-singleview div.singleselect + div.singleselect select,
 .path-grade-report-singleview div.groupselector select {
-    margin-right: 0px;
+    margin-right: 0;
 }
 
 .path-grade-report-singleview div.reporttable div.singleselect form div {
diff --git a/lib/editor/atto/plugins/equation/styles.css b/lib/editor/atto/plugins/equation/styles.css
index 932f203f77fde..f6081a05239dc 100644
--- a/lib/editor/atto/plugins/equation/styles.css
+++ b/lib/editor/atto/plugins/equation/styles.css
@@ -24,5 +24,5 @@
 }
 
 .atto_form .atto_equation_preview {
-    margin-bottom: 0px; /* Turn off the margin-bottom from the class "well" */
+    margin-bottom: 0; /* Turn off the margin-bottom from the class "well" */
 }
diff --git a/lib/editor/atto/styles.css b/lib/editor/atto/styles.css
index 74c49f82333f4..8133d93660920 100644
--- a/lib/editor/atto/styles.css
+++ b/lib/editor/atto/styles.css
@@ -69,7 +69,7 @@ div.editor_atto_toolbar button::-moz-focus-inner {
 }
 
 div.editor_atto_toolbar button img.icon {
-    padding: 0px;
+    padding: 0;
     margin: 2px 0;
     /* The following is dedicated to the beloved IE8, clashing with Bootstrap. God bless you IE. */
     vertical-align: text-bottom;
diff --git a/lib/editor/tinymce/styles.css b/lib/editor/tinymce/styles.css
index b432486941d86..b588250f2f19b 100644
--- a/lib/editor/tinymce/styles.css
+++ b/lib/editor/tinymce/styles.css
@@ -10,7 +10,7 @@
     }
     .moodleSkin .mceLayout .mceToolbar .mceNoWrap {
         clear: none;
-        width: 0px;
+        width: 0;
     }
 
     .o2k7Skin tr.mceLast .mceToolbar tr td.mceWrap,
diff --git a/message/output/airnotifier/style.css b/message/output/airnotifier/style.css
index 46b41d16a3355..840f4dc8377ae 100644
--- a/message/output/airnotifier/style.css
+++ b/message/output/airnotifier/style.css
@@ -25,5 +25,5 @@
 
 ul#airnotifierdevices {
     list-style: none;
-    margin: 0em;
-}
\ No newline at end of file
+    margin: 0;
+}
diff --git a/mnet/service/enrol/styles.css b/mnet/service/enrol/styles.css
index d81c85c1d3a30..5ff373dc93d89 100644
--- a/mnet/service/enrol/styles.css
+++ b/mnet/service/enrol/styles.css
@@ -4,7 +4,7 @@
 .path-admin-mnet-service-enrol table.remotehosts,
 .path-admin-mnet-service-enrol table.otherenrolledusers,
 .path-admin-mnet-service-enrol table.remotecourses {
-    margin: 0px auto 1em auto;
+    margin: 0 auto 1em auto;
 }
 .path-admin-mnet-service-enrol table.remotecourses th.categoryname {
     text-align: left;
@@ -26,7 +26,7 @@
     padding: 1em;
 }
 .path-admin-mnet-service-enrol .collapsibleregion.remotecourse.summary {
-    margin: 0px 10em;
+    margin: 0 10em;
 }
 .path-admin-mnet-service-enrol .roleassigntable {
     margin: 1em auto;
diff --git a/mod/assign/feedback/editpdf/styles.css b/mod/assign/feedback/editpdf/styles.css
index 86efb49da14ab..94d5c68ffce62 100644
--- a/mod/assign/feedback/editpdf/styles.css
+++ b/mod/assign/feedback/editpdf/styles.css
@@ -35,7 +35,7 @@
     left: 1em;
     right: 1em;
     top: 52px;
-    bottom: 0px;
+    bottom: 0;
     position: absolute;
     overflow: auto;
     background-color: #ccc;
@@ -51,7 +51,7 @@
 .assignfeedback_editpdf_widget .pageheader {
     background-color: #ebebeb;
     border-bottom: 1px solid #ccc;
-    padding: 0px;
+    padding: 0;
     padding-left: 20px;
     padding-right: 20px;
     min-height: 50px;
@@ -60,7 +60,7 @@
 }
 
 .moodle-dialogue-base .moodle-dialogue.assignfeedback_editpdf_widget .moodle-dialogue-bd {
-    padding: 0px;
+    padding: 0;
 }
 
 .assignfeedback_editpdf_widget .assignfeedback_editpdf_unsavedchanges.haschanges {
@@ -93,9 +93,9 @@
 .assignfeedback_editpdf_widget .pageheader button {
     background: none;
     padding: 4px 7px;
-    border: 0px;
-    border-radius: 0px;
-    margin: 0px;
+    border: 0;
+    border-radius: 0;
+    margin: 0;
     height: 30px;
     line-height: 30px;
     vertical-align: top;
@@ -107,7 +107,7 @@
     -webkit-appearance: none;
     -moz-appearance: menulist-text;
     background-color: #fff;
-    padding: 0px 10px;
+    padding: 0 10px;
 }
 
 .assignfeedback_editpdf_widget .pageheader select::-ms-expand {
@@ -119,7 +119,7 @@
 .assignfeedback_editpdf_widget .pageheader .navigation select + button,
 .assignfeedback_editpdf_widget .pageheader .toolbar select + button {
     border-left: 1px solid #ccc;
-    border-right: 0px;
+    border-right: 0;
 }
 
 .assignfeedback_editpdf_widget .pageheader .navigation button {
@@ -136,7 +136,7 @@
     background-color: white;
     height: 30px;
     line-height: 30px;
-    padding: 0px;
+    padding: 0;
 }
 
 .assignfeedback_editpdf_commentsearch ul {
@@ -154,13 +154,13 @@
 }
 
 .assignfeedback_editpdf_commentsearch ul li {
-    line-height: 0px;
+    line-height: 0;
     margin: 2px;
 }
 
 .assignfeedback_editpdf_commentsearch a pre {
     font-family: helvetica;
-    margin: 0px;
+    margin: 0;
     padding: 4px;
 }
 
@@ -186,7 +186,7 @@
 }
 
 .assignfeedback_editpdf_colourpicker ul {
-    margin: 0px;
+    margin: 0;
 }
 
 .assignfeedback_editpdf_commentmenu li.quicklist_comment {
@@ -206,29 +206,29 @@
 }
 
 .assignfeedback_editpdf_dropdown button {
-    border: 0px;
+    border: 0;
     background: none;
     padding: 6px 7px;
-    border-radius: 0px;
+    border-radius: 0;
     border-top: 1px solid #ccc;
 }
 
 .assignfeedback_editpdf_dropdown li:first-child button {
-    border-top: 0px;
+    border-top: 0;
 }
 
 .moodle-dialogue-base .moodle-dialogue.assignfeedback_editpdf_dropdown .moodle-dialogue-wrap {
     box-shadow: none;
     -moz-box-shadow: none;
     -webkit-box-shadow: none;
-    margin-left: 0px;
-    margin-right: 0px;
-    margin-top: 0px;
+    margin-left: 0;
+    margin-right: 0;
+    margin-top: 0;
     border-radius: 4px;
 }
 
 .moodle-dialogue-base .moodle-dialogue.assignfeedback_editpdf_dropdown .moodle-dialogue-bd {
-    padding: 0px;
+    padding: 0;
 }
 
 .assignfeedback_editpdf_dropdown .moodle-dialogue-hd,
@@ -237,7 +237,7 @@
 }
 
 .assignfeedback_editpdf_menu li hr {
-    margin: 0px;
+    margin: 0;
 }
 
 .assignfeedback_editpdf_menu li a {
@@ -254,12 +254,12 @@
 }
 
 ul.assignfeedback_editpdf_menu {
-    margin: 0px;
+    margin: 0;
 }
 
 .assignfeedback_editpdf_menu li {
     list-style-type: none;
-    margin: 0px;
+    margin: 0;
     border-radius: 4px;
 }
 
@@ -268,7 +268,7 @@ ul.assignfeedback_editpdf_menu {
 }
 
 .assignfeedback_editpdf_menu li button {
-    margin: 0px;
+    margin: 0;
     background: none;
 }
 
diff --git a/mod/assign/styles.css b/mod/assign/styles.css
index 2189a4090f845..0d1ec65b77d0d 100644
--- a/mod/assign/styles.css
+++ b/mod/assign/styles.css
@@ -24,7 +24,7 @@
 }
 
 .path-mod-assign table.generaltable table td {
-    border: 0px none;
+    border: 0 none;
 }
 
 .path-mod-assign .gradingsummarytable,
@@ -52,13 +52,13 @@
 }
 
 .path-mod-assign .quickgradingform .mform fieldset {
-    margin: 0px;
-    padding: 0px;
+    margin: 0;
+    padding: 0;
 }
 
 .path-mod-assign .gradingbatchoperationsform .mform fieldset {
-    margin: 0px;
-    padding: 0px;
+    margin: 0;
+    padding: 0;
 }
 
 .path-mod-assign td.submissionstatus,
@@ -148,11 +148,11 @@
 }
 
 .path-mod-assign .gradingtable .yui3-menu ul {
-    margin: 0px;
+    margin: 0;
 }
 
 .path-mod-assign .gradingtable .yui3-menu-label {
-    padding-left: 0px;
+    padding-left: 0;
     line-height: 12px;
 }
 
@@ -169,7 +169,7 @@
 }
 
 .path-mod-assign .gradingtable .yui3-menu .yui3-menu-content {
-    border: 0px;
+    border: 0;
     padding-top: 0;
 }
 
@@ -299,11 +299,11 @@
 }
 
 .path-mod-assign.layout-option-nonavbar {
-    padding-top: 0px;
+    padding-top: 0;
 }
 
 .path-mod-assign [data-region="user-selector"] select {
-    margin-bottom: 0px;
+    margin-bottom: 0;
 }
 
 .path-mod-assign [data-region="user-selector"] .alignment {
@@ -573,7 +573,7 @@
     box-sizing: border-box;
     background-color: #f5f5f5;
     padding: 15px;
-    padding-top: 0px;
+    padding-top: 0;
     -webkit-transition: width 0.5s, right 0.5s, left 0.5s;
     -moz-transition: width 0.5s, right 0.5s, left 0.5s;
     transition: width 0.5s, right 0.5s, left 0.5s;
@@ -975,11 +975,11 @@
     display: none;
     z-index: 100;
     position: absolute;
-    top: 0em;
+    top: 0;
     left: 0;
     width: 100%;
     overflow: auto;
-    bottom: 0em;
+    bottom: 0;
     background-color: #ddd;
     opacity: 0.4;
     padding-top: 4em;
diff --git a/mod/book/tool/print/print.css b/mod/book/tool/print/print.css
index 244867ef2ffea..7b733c0c8848e 100644
--- a/mod/book/tool/print/print.css
+++ b/mod/book/tool/print/print.css
@@ -20,7 +20,7 @@
 #page-mod-book-print h6 {
     page-break-after: avoid;
     page-break-inside: avoid;
-    margin-left: 0px;
+    margin-left: 0;
 }
 
 /* just some hack - ignore user defined <font> */
@@ -52,8 +52,8 @@
 
 #page-mod-book-print .book_toc_none ul,
 #page-mod-book-print .book_toc_none ul ul {
-    margin-left: 0px;
-    padding-left: 0px;
+    margin-left: 0;
+    padding-left: 0;
 }
 
 #page-mod-book-print .book_toc_none li {
@@ -62,7 +62,7 @@
 }
 
 #page-mod-book-print .book_toc_none li li {
-    margin-top: 0px;
+    margin-top: 0;
     list-style: none;
 }
 /* numbering == NUMBERED */
@@ -76,14 +76,14 @@
 }
 
 #page-mod-book-print .book_toc_numbered li li {
-    margin-top: 0px;
+    margin-top: 0;
     list-style: none;
 }
 
 #page-mod-book-print .book_toc_numbered ul,
 #page-mod-book-print .book_toc_numbered ul ul {
-    margin-left: 0px;
-    padding-left: 0px;
+    margin-left: 0;
+    padding-left: 0;
 }
 
 /* numbering == BULLETS */
@@ -97,18 +97,18 @@
 }
 
 #page-mod-book-print .book_toc_bullets li li {
-    margin-top: 0px;
+    margin-top: 0;
     list-style: circle;
 }
 
 #page-mod-book-print .book_toc_bullets ul {
-    margin-left: 0px;
-    padding-left: 0px;
+    margin-left: 0;
+    padding-left: 0;
 }
 
 #page-mod-book-print .book_toc_bullets ul ul {
     margin-left: 20px;
-    padding-left: 0px;
+    padding-left: 0;
 }
 
 /* numbering == INDENTED */
@@ -122,18 +122,18 @@
 }
 
 #page-mod-book-print .book_toc_indented li li {
-    margin-top: 0px;
+    margin-top: 0;
     list-style: none;
 }
 
 #page-mod-book-print .book_toc_indented ul {
-    margin-left: 0px;
-    padding-left: 0px;
+    margin-left: 0;
+    padding-left: 0;
 }
 
 #page-mod-book-print .book_toc_indented ul ul {
     margin-left: 20px;
-    padding-left: 0px;
+    padding-left: 0;
 }
 
 
diff --git a/mod/chat/gui_ajax/theme/bubble/chat.css b/mod/chat/gui_ajax/theme/bubble/chat.css
index 6d73a8cda060e..035eb9303173d 100644
--- a/mod/chat/gui_ajax/theme/bubble/chat.css
+++ b/mod/chat/gui_ajax/theme/bubble/chat.css
@@ -127,7 +127,7 @@ Dual licensed under MIT and GNU GPLv2 © Nicolas Gallagher
     border-radius: 10px;
 
     /* moodle specific */
-    margin-top: 0px;
+    margin-top: 0;
     /* end moodle specific */
 }
 
diff --git a/mod/data/styles.css b/mod/data/styles.css
index b65d459a9132c..aab9ad28f7140 100644
--- a/mod/data/styles.css
+++ b/mod/data/styles.css
@@ -17,7 +17,7 @@
 }
 
 #page-mod-data-view img.list_picture {
-    border: 0px;
+    border: 0;
 }
 
 #page-mod-data-view div.search_none {
diff --git a/mod/forum/styles.css b/mod/forum/styles.css
index 6ab6f897ae751..4a23b38d80d0b 100644
--- a/mod/forum/styles.css
+++ b/mod/forum/styles.css
@@ -114,7 +114,7 @@
 }
 
 .path-mod-forum .forumheaderlist td {
-    border-width: 1px 0px 0px 1px;
+    border-width: 1px 0 0 1px;
     border-style: solid;
 }
 
diff --git a/mod/glossary/styles.css b/mod/glossary/styles.css
index 4a2e711f8f256..f4d92eb5cd837 100644
--- a/mod/glossary/styles.css
+++ b/mod/glossary/styles.css
@@ -2,12 +2,12 @@
 .path-mod-glossary .glossarypost {
     width: 95%;
     border-collapse: separate;
-    margin: 0px auto;
+    margin: 0 auto;
     text-align: left;
 }
 
 .path-mod-glossary .glossarypost.entrylist {
-    border-width: 0px;
+    border-width: 0;
 }
 
 .path-mod-glossary .glossarypost.continuous .concept {
@@ -49,12 +49,12 @@
 
 .path-mod-glossary .glossarydisplay .tabs {
     width: 100%;
-    margin-bottom: 0px;
+    margin-bottom: 0;
 }
 
 .path-mod-glossary .glossarydisplay .tabs .side {
     border-style: none;
-    border-width: 0px;
+    border-width: 0;
     width: auto;
 }
 
@@ -70,7 +70,7 @@
 .path-mod-glossary table.glossaryapproval,
 .path-mod-glossary .glossarypost .entrylowersection table {
     width: 100%;
-    margin-bottom: 0em;
+    margin-bottom: 0;
 }
 
 .glossary-activity-picture {
@@ -96,11 +96,11 @@
 }
 
 #page-mod-glossary-view table.glossarycategoryheader {
-    margin-bottom: 0em;
+    margin-bottom: 0;
 }
 
 #page-mod-glossary-view table.glossarycategoryheader th {
-    padding: 0px;
+    padding: 0;
 }
 
 #page-mod-glossary-view td.glossarysearchbox label {
diff --git a/mod/scorm/styles.css b/mod/scorm/styles.css
index e93864023d0fc..ca3cd6d67d382 100644
--- a/mod/scorm/styles.css
+++ b/mod/scorm/styles.css
@@ -34,7 +34,7 @@
 #page-mod-scorm-player #scormbrowse {
     position: absolute;
     left: 5px;
-    top: 0px;
+    top: 0;
 }
 
 #page-mod-scorm-player #scormnav {
@@ -49,8 +49,8 @@
     width: 74%;
     height: 100%;
     position: absolute;
-    right: 0px;
-    top: 0px;
+    right: 0;
+    top: 0;
 }
 
 #page-mod-scorm-player #scormpage {
@@ -66,7 +66,7 @@
 
 #page-mod-scorm-player #tocbox {
     position: relative;
-    left: 0px;
+    left: 0;
     width: 100%;
     height: 100%;
     font-size: 0.8em;
@@ -162,17 +162,17 @@
 
 #page-mod-scorm-player #altfinishlink {
     font-size: 140%;
-    border: 0px;
-    padding: 0px;
+    border: 0;
+    padding: 0;
 }
 
 #page-mod-scorm-player #scormmode {
     float: left;
-    border: 0px;
+    border: 0;
 }
 
 #page-mod-scorm-player.pagelayout-popup #page-content .region-content {
-    padding: 0px;
+    padding: 0;
 }
 
 #page-mod-scorm-player.pagelayout-popup #page-wrapper {
diff --git a/mod/wiki/styles.css b/mod/wiki/styles.css
index a3ad556214297..27da7321db584 100644
--- a/mod/wiki/styles.css
+++ b/mod/wiki/styles.css
@@ -108,7 +108,7 @@
 }
 
 .wiki-upload-table h3 {
-    margin: 4px 0px;
+    margin: 4px 0;
     text-align: center;
 }
 
diff --git a/mod/workshop/allocation/manual/styles.css b/mod/workshop/allocation/manual/styles.css
index ab938feb4c92c..be4cac1a20d57 100644
--- a/mod/workshop/allocation/manual/styles.css
+++ b/mod/workshop/allocation/manual/styles.css
@@ -3,7 +3,7 @@
  */
 
 .path-mod-workshop .manual-allocator .allocations {
-    margin: 0px auto;
+    margin: 0 auto;
     width: 100%;
 }
 
@@ -38,7 +38,7 @@
 }
 
 .path-mod-workshop .manual-allocator .allocations tr td ul {
-    margin: 0px;
+    margin: 0;
 }
 
 .path-mod-workshop .manual-allocator .allocations tr td ul li {
diff --git a/mod/workshop/allocation/random/styles.css b/mod/workshop/allocation/random/styles.css
index 2e33896e69184..b06b63b4f8958 100644
--- a/mod/workshop/allocation/random/styles.css
+++ b/mod/workshop/allocation/random/styles.css
@@ -1,4 +1,4 @@
 .path-mod-workshop .random-allocator .warning {
     width: 100%;
-    margin: 0px auto 15px auto;
+    margin: 0 auto 15px auto;
 }
diff --git a/mod/workshop/styles.css b/mod/workshop/styles.css
index 713684b4b98a4..f9c44d55572e0 100644
--- a/mod/workshop/styles.css
+++ b/mod/workshop/styles.css
@@ -46,7 +46,7 @@
 .path-mod-workshop .submission-summary .title,
 .path-mod-workshop .submission-summary .userdate,
 .path-mod-workshop .submission-summary .grade-status {
-    margin: 0px 0px 0px 40px;
+    margin: 0 0 0 40px;
 }
 
 .path-mod-workshop .submission-summary .author {
@@ -57,7 +57,7 @@
 .path-mod-workshop .submission-summary.anonymous .author,
 .path-mod-workshop .submission-summary.anonymous .userdate,
 .path-mod-workshop .submission-summary.anonymous .grade-status {
-    margin: 0px 0px 0px 5px;
+    margin: 0 0 0 5px;
 }
 
 .path-mod-workshop .submission-summary .userdate {
@@ -71,8 +71,8 @@
 
 .path-mod-workshop .submission-summary .author .picture {
     position: absolute;
-    top: 0px;
-    left: 0px;
+    top: 0;
+    left: 0;
 }
 
 /**
@@ -80,7 +80,7 @@
  */
 .path-mod-workshop .submission-full {
     border: 1px solid #ddd;
-    margin: 0px 0px 1em 0px;
+    margin: 0 0 1em 0;
 }
 
 .path-mod-workshop .submission-full .header {
@@ -93,13 +93,13 @@
 .path-mod-workshop .submission-full .header .title,
 .path-mod-workshop .submission-full .header .author,
 .path-mod-workshop .submission-full .header .userdate {
-    margin: 0px 0px 0px 80px;
+    margin: 0 0 0 80px;
 }
 
 .path-mod-workshop .submission-full.anonymous .header .title,
 .path-mod-workshop .submission-full.anonymous .header .author,
 .path-mod-workshop .submission-full.anonymous .header .userdate {
-    margin: 0px 0px 0px 5px;
+    margin: 0 0 0 5px;
 }
 
 .path-mod-workshop .submission-full .header .userdate.created {
@@ -108,7 +108,7 @@
 
 .path-mod-workshop .submission-full .header .userdate.modified {
     padding-left: 10px;
-    margin-left: 0px;
+    margin-left: 0;
     border-left: 1px solid #000;
 }
 
@@ -149,18 +149,18 @@
  */
 .path-mod-workshop .submission-summary.example .title,
 .path-mod-workshop .submission-summary.example .userdate {
-    margin: 0px 0px 0px 0px;
+    margin: 0 0 0 0;
 }
 
 /**
  * Example submission - full display
  */
 .path-mod-workshop .submission-full.example .header {
-    min-height: 0px;
+    min-height: 0;
 }
 
 .path-mod-workshop .submission-full.example .header .title {
-    margin: 0px 0px 0px 0px;
+    margin: 0 0 0 0;
 }
 
 /**
@@ -168,7 +168,7 @@
  */
 .path-mod-workshop .message {
     padding: 5px 5em 5px 15px;
-    margin: 0px auto 20px auto;
+    margin: 0 auto 20px auto;
     width: 100%;
     font-size: 80%;
     position: relative;
@@ -176,7 +176,7 @@
 
 .path-mod-workshop .message .singlebutton {
     text-align: left;
-    margin: 0px;
+    margin: 0;
 }
 
 .path-mod-workshop .message.ok {
@@ -319,15 +319,15 @@
 .path-mod-workshop .userplan tr.phasetasks .tasks {
     list-style: none;
     margin: 3px;
-    padding: 0px;
+    padding: 0;
 }
 
 .path-mod-workshop .userplan tr.phasetasks .title {
-    padding: 0px 10px 0px 20px;
+    padding: 0 10px 0 20px;
 }
 
 .path-mod-workshop .userplan tr.phasetasks .details {
-    padding: 0px 10px 0px 25px;
+    padding: 0 10px 0 25px;
     font-size: 80%;
 }
 
@@ -336,7 +336,7 @@
  */
 .path-mod-workshop .assessment-full {
     border: 1px solid #ddd;
-    margin: 0px auto 1em auto;
+    margin: 0 auto 1em auto;
 }
 
 .path-mod-workshop .assessment-full .header {
@@ -354,14 +354,14 @@
 .path-mod-workshop .assessment-full .header .reviewer,
 .path-mod-workshop .assessment-full .header .grade,
 .path-mod-workshop .assessment-full .header .weight {
-    margin: 0px 0px 0px 40px;
+    margin: 0 0 0 40px;
 }
 
 .path-mod-workshop .assessment-full.anonymous .header .title,
 .path-mod-workshop .assessment-full.anonymous .header .reviewer,
 .path-mod-workshop .assessment-full.anonymous .header .grade,
 .path-mod-workshop .assessment-full.anonymous .header .weight {
-    margin: 0px 0px 0px 5px;
+    margin: 0 0 0 5px;
 }
 
 .path-mod-workshop .assessment-full .header .reviewer .picture {
@@ -386,7 +386,7 @@
 .path-mod-workshop .assessment-full .assessment-form-wrapper,
 .path-mod-workshop .assessment-full .overall-feedback-wrapper {
     margin-top: 0.5em;
-    padding: 0px 1em;
+    padding: 0 1em;
 }
 
 .path-mod-workshop .assessment-summary.graded .singlebutton input[type="submit"],
@@ -422,7 +422,7 @@
  * Assessment form
  */
 .path-mod-workshop .assessmentform .description {
-    margin: 0px 1em;
+    margin: 0 1em;
 }
 
 /**
@@ -436,7 +436,7 @@
 }
 
 .path-mod-workshop .grading-report .userpicture {
-    margin: 0px 3px;
+    margin: 0 3px;
     vertical-align: middle;
 }
 
@@ -534,7 +534,7 @@
  */
 .path-mod-workshop .feedback {
     border: 1px solid #ddd;
-    margin: 0px auto 1em auto;
+    margin: 0 auto 1em auto;
     width: 100%;
 }
 
@@ -546,7 +546,7 @@
 }
 
 .path-mod-workshop .feedback .header .title {
-    margin: 0px 0px 0px 40px;
+    margin: 0 0 0 40px;
 }
 
 .path-mod-workshop .feedback .header .picture {
diff --git a/question/type/multichoice/styles.css b/question/type/multichoice/styles.css
index c3de6bceb2fc2..5707361ec0be9 100644
--- a/question/type/multichoice/styles.css
+++ b/question/type/multichoice/styles.css
@@ -42,10 +42,10 @@ body#page-question-type-multichoice div[id^=fitem_id_][id*=answer_] .fitemtitle
 }
 
 body#page-question-type-multichoice div[id^=fitem_id_] .fitemtitle {
-    margin-left: 0px;
-    margin-right: 0px;
+    margin-left: 0;
+    margin-right: 0;
     padding-left: 6px;
-    padding-right: 0px;
+    padding-right: 0;
 }
 
 body#page-question-type-multichoice div[id^=fitem_id_][id*=fraction_] {