EditMediaDialog.css

/*
 *  Copyright (c) 2018-present, Evgeny Nadymov
 *
 * This source code is licensed under the GPL v.3.0 license found in the
 * LICENSE file in the root directory of this source tree.
 */

.edit-media-dialog-edit-button {
    position: absolute;
    top: 30px;
    right: 30px;
    padding: 6px;
    font-size: 18px;
    line-height: normal;
    color: white;
    background: rgba(0, 0, 0, 0.25);
}

.edit-media-dialog-edit-button:hover {
    background: rgba(0, 0, 0, 0.25);
}

.edit-media-dialog-content {
    flex: 1 1 auto;
    display: flex;
    flex-direction: column;
    position: relative;
    border-top-width: 1px;
    border-top-style: solid;
    border-bottom-width: 1px;
    border-bottom-style: solid;
    border-color: var(--border);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    cursor: default;
}

#edit-media-dialog-caption {
    box-shadow: 0 0 0 0;
    max-height: 150px;
    width: 324px;
    min-height: 24px;
    overflow-x: hidden;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    padding: 12px 24px 12px 24px;
    white-space: pre-wrap;
    word-wrap: break-word;
    word-break: break-word;
}

#edit-media-dialog-caption::before {
    /*content: attr(placeholder);*/
    color: #8e9396;
    pointer-events: none;
    transform: translateX(20px);
    will-change: transform;
    opacity: 0;
    /*position: absolute;*/
    transition: opacity 0.15s ease-out, transform 0.15s ease-out;
}

#edit-media-dialog-caption:empty::before {
    content: attr(placeholder);
    transform: translateX(0px);
    opacity: 0.75;
}

#edit-media-dialog-caption:empty:active::before,
#edit-media-dialog-caption:empty:focus::before {
    opacity: 0.75;
}

#edit-media-dialog-caption:focus {
    border: 0;
    outline: none;
    box-shadow: 0 0 0 0;
}