Fix "follow" links z-index order to avoid overlapping issues

Close mmistakes#1167

Author: mmistakes

CHANGELOG.md

@@ -11,6 +11,7 @@
 ## Bug Fixes
 
 - Fix positioning of sidebar table of contents when using `layout: splash`. [#1169](https://github.com/mmistakes/minimal-mistakes/issues/1169)
+- Fix "follow" links `z-index` order to avoid overlapping issues. [#1167](https://github.com/mmistakes/minimal-mistakes/issues/1167)
 
 ### Maintenance
 

_sass/minimal-mistakes/_sidebar.scss

@@ -7,11 +7,16 @@
    ========================================================================== */
 
 .sidebar {
+  @include clearfix();
+  margin-bottom: 1em;
   -webkit-transform: translate3d(0, 0 , 0);
           transform: translate3d(0, 0 , 0);
 
-  @include clearfix();
-  margin-bottom: 1em;
+  @include breakpoint(max-width $large) {
+    /* fix z-index order of follow links */
+    position: relative;
+    z-index: 10;
+  }
 
   @include breakpoint($large) {
     float: left;

docs/_docs/18-history.md

@@ -4,7 +4,7 @@ permalink: /docs/history/
 excerpt: "Change log of enhancements and bug fixes made to the theme."
 sidebar:
   nav: docs
-last_modified_at: 2017-08-09T08:30:18-04:00
+last_modified_at: 2017-08-09T09:02:47-04:00
 ---
 
 ## Unreleased
@@ -20,6 +20,7 @@ last_modified_at: 2017-08-09T08:30:18-04:00
 ## Bug Fixes
 
 - Fix positioning of sidebar table of contents when using `layout: splash`. [#1169](https://github.com/mmistakes/minimal-mistakes/issues/1169)
+- Fix "follow" links `z-index` order to avoid overlapping issues. [#1167](https://github.com/mmistakes/minimal-mistakes/issues/1167)
 
 ### Maintenance
 

docs/_sass/minimal-mistakes/_sidebar.scss

@@ -7,11 +7,16 @@
    ========================================================================== */
 
 .sidebar {
+  @include clearfix();
+  margin-bottom: 1em;
   -webkit-transform: translate3d(0, 0 , 0);
           transform: translate3d(0, 0 , 0);
 
-  @include clearfix();
-  margin-bottom: 1em;
+  @include breakpoint(max-width $large) {
+    /* fix z-index order of follow links */
+    position: relative;
+    z-index: 10;
+  }
 
   @include breakpoint($large) {
     float: left;