bookstack/resources/assets/sass/_components.scss

// System wide notifications
[notification] {
  position: fixed;
  top: 0;
  right: 0;
  margin: $-xl*2 $-xl;
  padding: $-m $-l;
  background-color: #EEE;
  border-radius: 3px;
  box-shadow: $bs-card;
  z-index: 999999;
  cursor: pointer;
  max-width: 360px;
  transition: transform ease-in-out 280ms;
  transform: translateX(580px);
  display: grid;
  grid-template-columns: 42px 1fr;
  color: #FFF;
  span, svg {
    vertical-align: middle;
    justify-self: center;
    align-self: center;
  }
  svg {
    fill: #EEEEEE;
    width: 2.8rem;
    height: 2.8rem;
    padding-right: $-s;
  }
  span {
    vertical-align: middle;
    line-height: 1.3;
  }
  &.pos {
    background-color: $positive;
  }
  &.neg {
    background-color: $negative;
  }
  &.warning {
    background-color: $secondary;
  }
  &.showing {
    transform: translateX(0);
  }
  &.showing:hover {
    transform: translate3d(0, -2px, 0);
  }
}

[chapter-toggle] {
  cursor: pointer;
  margin: 0;
  transition: all ease-in-out 180ms;
  user-select: none;
  svg[data-icon="caret-right"] {
    transition: all ease-in-out 180ms;
    transform: rotate(0deg);
    transform-origin: 25% 50%;
  }
  &.open svg[data-icon="caret-right"] {
    transform: rotate(90deg);
  }
}

[overlay] {
  background-color: rgba(0, 0, 0, 0.333);
  position: fixed;
  z-index: 95536;
  width: 100%;
  height: 100%;
  min-width: 100%;
  min-height: 100%;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  align-items: center;
  justify-content: center;
  display: none;
}

.popup-body-wrap {
  display: flex;
}

.popup-body {
  background-color: #FFF;
  max-height: 90%;
  width: 1200px;
  height: auto;
  margin: 2% 5%;
  border-radius: 4px;
  box-shadow: 0 0 15px 0 rgba(0, 0, 0, 0.3);
  overflow: hidden;
  z-index: 999;
  display: flex;
  flex-direction: column;
  &.small {
    margin: 2% auto;
    width: 800px;
    max-width: 90%;
  }
  &:before {
    display: flex;
    align-self: flex-start;
  }
  .popup-content {
    overflow-y: auto;
  }
}

.corner-button {
  position: absolute;
  top: 0;
  right: 0;
  margin: 0;
  height: 40px;
  border-radius: 0;
  box-shadow: none;
}

.popup-header, .popup-footer {
  display: block !important;
  position: relative;
  height: 40px;
  flex: none !important;
  .popup-title {
    color: #FFF;
    padding: 8px $-m;
  }
}
body.flexbox-support #entity-selector-wrap .popup-body .form-group {
  height: 444px;
  min-height: 444px;
}
#entity-selector-wrap .popup-body .form-group {
  margin: 0;
}

.image-manager-body {
  min-height: 70vh;
}

.dropzone-container {
  position: relative;
  background-color: #EEE;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='4' height='4' viewBox='0 0 4 4'%3E%3Cpath fill='%23a9a9a9' fill-opacity='0.52' d='M1 3h1v1H1V3zm2-2h1v1H3V1z'%3E%3C/path%3E%3C/svg%3E");
}

.image-manager-list .image {
  display: block;
  position: relative;
  border-radius: 0;
  float: left;
  margin: 0;
  cursor: pointer;
  width: (100%/6);
  height: auto;
  border: 1px solid #DDD;
  box-shadow: 0 0 0 0 rgba(0, 0, 0, 0);
  transition: all cubic-bezier(.4, 0, 1, 1) 160ms;
  overflow: hidden;
  &.selected {
    //transform: scale3d(0.92, 0.92, 0.92);
    border: 4px solid #FFF;
    overflow: hidden;
    border-radius: 8px;
    box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.2);
  }
  img {
    width: 100%;
    max-width: 100%;
    display: block;
  }
  .image-meta {
    position: absolute;
    width: 100%;
    bottom: 0;
    left: 0;
    color: #EEE;
    background-color: rgba(0, 0, 0, 0.4);
    font-size: 10px;
    padding: 3px 4px;
    span {
      display: block;
    }
  }
  @include smaller-than($xl) {
    width: (100%/4);
  }
  @include smaller-than($m) {
    .image-meta {
      display: none;
    }
  }
}

#image-manager .load-more {
  display: block;
  text-align: center;
  background-color: #EEE;
  padding: $-s $-m;
  color: #AAA;
  clear: both;
  font-size: 20px;
  cursor: pointer;
  font-style: italic;
}

.image-manager-sidebar {
  width: 300px;
  margin-left: 1px;
  overflow-y: auto;
  overflow-x: hidden;
  border-left: 1px solid #DDD;
  .inner {
    padding: $-m;
  }
  img {
    max-width: 100%;
    max-height: 180px;
    display: block;
    margin: 0 auto $-m auto;
    box-shadow: 0 1px 21px 1px rgba(76, 76, 76, 0.3);
  }
  .image-manager-viewer {
    height: 196px;
    display: flex;
    align-items: center;
    justify-content: center;
    a {
      display: inline-block;
    }
  }
  .dropzone-container {
    border-bottom: 1px solid #DDD;
  }
}

.image-manager-list {
  overflow-y: scroll;
  flex: 1;
}

.image-manager-content {
  display: flex;
  flex-direction: column;
  flex: 1;
  .container {
    width: 100%;
  }
  .full-tab {
    text-align: center;
  }
}

// Dropzone
/*
 * The MIT License
 * Copyright (c) 2012 Matias Meno <m@tias.me>
 */
.dz-message {
  font-size: 1em;
  line-height: 2.35;
  font-style: italic;
  color: #888;
  text-align: center;
  cursor: pointer;
  padding: $-l $-m;
  transition: all ease-in-out 120ms;
}

.dz-drag-hover .dz-message {
  background-color: rgb(16, 126, 210);
  color: #EEE;
}

@keyframes passing-through {
  0% {
    opacity: 0;
    transform: translateY(40px);
  }
  30%, 70% {
    opacity: 1;
    transform: translateY(0px);
  }
  100% {
    opacity: 0;
    transform: translateY(-40px);
  }
}

@keyframes slide-in {
  0% {
    opacity: 0;
    transform: translateY(40px);
  }
  30% {
    opacity: 1;
    transform: translateY(0px);
  }
}

@keyframes pulse {
  0% {
    transform: scale(1);
  }
  10% {
    transform: scale(1.1);
  }
  20% {
    transform: scale(1);
  }
}

.dropzone, .dropzone * {
  box-sizing: border-box;
}

.dz-preview {
  position: relative;
  display: inline-block;
  vertical-align: top;
  margin: 12px;
  min-height: 80px;
}

.dz-preview:hover {
  z-index: 1000;
}

.dz-preview:hover .dz-details {
  opacity: 1;
}

.dz-preview.dz-file-preview .dz-image {
  border-radius: 4px;
  background: #e9e9e9;
}

.dz-preview.dz-file-preview .dz-details {
  opacity: 1;
}

.dz-preview.dz-image-preview {
  background: white;
}

.dz-preview.dz-image-preview .dz-details {
  transition: opacity 0.2s linear;
}

.dz-preview .dz-remove {
  font-size: 13px;
  text-align: center;
  display: block;
  cursor: pointer;
  border: none;
  margin-top: 3px;
}

.dz-preview .dz-remove:hover {
  text-decoration: underline;
}

.dz-preview:hover .dz-details {
  opacity: 1;
}

.dz-preview .dz-details {
  z-index: 20;
  position: absolute;
  top: 0;
  left: 0;
  opacity: 0;
  font-size: 10px;
  min-width: 100%;
  max-width: 100%;
  padding: 6px 3px;
  text-align: center;
  color: rgba(0, 0, 0, 0.9);
  line-height: 150%;
}

.dz-preview .dz-details .dz-size {
  margin-bottom: 0.5em;
  font-size: 12px;
}

.dz-preview .dz-details .dz-filename {
  white-space: nowrap;
}

.dz-preview .dz-details .dz-filename:hover span {
  border: 1px solid rgba(200, 200, 200, 0.8);
  background-color: rgba(255, 255, 255, 0.8);
}

.dz-preview .dz-details .dz-filename:not(:hover) {
  overflow: hidden;
  text-overflow: ellipsis;
}

.dz-preview .dz-details .dz-filename:not(:hover) span {
  border: 1px solid transparent;
}

.dz-preview .dz-details .dz-filename span {
  background-color: rgba(255, 255, 255, 0.4);
  padding: 0 0.4em;
  border-radius: 3px;
}

.dz-preview:hover .dz-image img {
  filter: blur(8px);
}

.dz-preview .dz-image {
  border-radius: 4px;
  overflow: hidden;
  width: 80px;
  height: 80px;
  position: relative;
  display: block;
  z-index: 10;
}

.dz-preview .dz-image img {
  display: block;
}

.dz-preview.dz-success .dz-success-mark {
  animation: passing-through 3s cubic-bezier(0.77, 0, 0.175, 1);
}

.dz-preview.dz-error .dz-error-mark {
  opacity: 1;
  animation: slide-in 3s cubic-bezier(0.77, 0, 0.175, 1);
}

.dz-preview .dz-success-mark, .dz-preview .dz-error-mark {
  pointer-events: none;
  opacity: 0;
  z-index: 1001;
  position: absolute;
  display: block;
  top: 50%;
  left: 50%;
  margin-left: -27px;
  margin-top: -35px;
}

.dz-preview .dz-success-mark svg, .dz-preview .dz-error-mark svg {
  display: block;
  width: 54px;
  height: 54px;
}

.dz-preview.dz-processing .dz-progress {
  opacity: 1;
  transition: all 0.2s linear;
}

.dz-preview.dz-complete .dz-progress {
  opacity: 0;
  transition: opacity 0.4s ease-in;
}

.dz-preview:not(.dz-processing) .dz-progress {
  animation: pulse 6s ease infinite;
}

.dz-preview .dz-progress {
  opacity: 1;
  z-index: 1000;
  pointer-events: none;
  position: absolute;
  height: 16px;
  left: 50%;
  top: 50%;
  margin-top: -8px;
  width: 80px;
  margin-left: -40px;
  background: rgba(255, 255, 255, 0.9);
  transform: scale(1);
  border-radius: 8px;
  overflow: hidden;
}

.dz-preview .dz-progress .dz-upload {
  background: #333;
  background: linear-gradient(to bottom, #666, #444);
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  width: 0;
  transition: width 300ms ease-in-out;
}

.dz-preview.dz-error .dz-error-message {
  display: block;
}

.dz-preview.dz-error {
  .dz-image, .dz-details {
    &:hover ~ .dz-error-message {
      opacity: 1;
      pointer-events: auto;
    }
  }
}

.dz-preview .dz-error-message {
  pointer-events: none;
  z-index: 1000;
  position: absolute;
  display: block;
  display: none;
  opacity: 0;
  transition: opacity 0.3s ease;
  border-radius: 4px;
  font-size: 12px;
  line-height: 1.2;
  top: 88px;
  left: -26px;
  width: 148px;
  background: $negative;
  padding: $-xs;
  color: white;
}

.dz-preview .dz-error-message:after {
  content: '';
  position: absolute;
  top: -6px;
  left: 64px;
  width: 0;
  height: 0;
  border-left: 6px solid transparent;
  border-right: 6px solid transparent;
  border-bottom: 6px solid $negative;
}


.tab-container .nav-tabs {
  text-align: left;
  border-bottom: 1px solid #DDD;
  margin-bottom: $-m;
  .tab-item {
    padding: $-s;
    color: #666;
    &.selected {
      border-bottom-width: 3px;
    }
  }
}

.image-picker .none {
  display: none;
}

#code-editor .CodeMirror {
  height: 400px;
}

#code-editor .lang-options {
  max-width: 400px;
  margin-bottom: $-s;
  a {
    margin-right: $-xs;
    text-decoration: underline;
  }
}

@include smaller-than($m) {
  #code-editor .lang-options {
    max-width: 100%;
  }
  #code-editor .CodeMirror {
    height: 200px;
  }
}

.comment-box {
  clear: left;
  border: 1px solid #DDD;
  margin-bottom: $-s;
  border-radius: 3px;
  .content {
    padding: $-s;
    font-size: 0.666em;
    p, ul, ol {
      font-size: $fs-m;
      margin: .5em 0;
    }
  }
  .reply-row {
    padding: $-xs $-s;
  }
}

.comment-box .header {
  padding: $-xs $-s;
  background-color: #f8f8f8;
  border-bottom: 1px solid #DDD;
  .meta {
    img, a, span {
      display: inline-block;
      vertical-align: top;
    }
    a, span {
      padding: $-xxs 0 $-xxs 0;
      line-height: 1.6;
    }
    a { color: #666; }
    span {
      color: #888;
      padding-left: $-xxs;
    }
  }
  .text-muted {
    color: #999;
  }
}

#tag-manager .drag-card {
  max-width: 500px;
}