Enable MergeableSelector in scss-lint

.scss-lint.yml

@@ -112,7 +112,7 @@ linters:
   # Reports when you define the same selector twice in a single sheet.
   MergeableSelector:
-    enabled: false
+    enabled: true
   # Functions, mixins, variables, and placeholders should be declared
   # with all lowercase letters and hyphens instead of underscores.

app/assets/stylesheets/framework/blocks.scss

@@ -40,6 +40,10 @@
   &.top-block {
     border-top: none;
+
+    .container-fluid {
+      background-color: inherit;
+    }
   }
   &.middle-block {
@@ -98,10 +102,6 @@
     background-color: $white-light;
     border-top: none;
   }
-
-  &.top-block .container-fluid {
-    background-color: inherit;
-  }
 }
 .sub-header-block {

app/assets/stylesheets/framework/callout.scss

@@ -12,15 +12,15 @@
   border-left: 3px solid $border-color;
   color: $text-color;
   background: $gray-light;
-}
-.bs-callout h4 {
-  margin-top: 0;
-  margin-bottom: 5px;
-}
-.bs-callout p:last-child {
-  margin-bottom: 0;
+  h4 {
+    margin-top: 0;
+    margin-bottom: 5px;
+  }
+  p:last-child {
+    margin-bottom: 0;
+  }
 }
 /* Variations */

app/assets/stylesheets/framework/common.scss

@@ -53,6 +53,14 @@ hr {
 .str-truncated {
   @include str-truncated;
+
+  &-60 {
+    @include str-truncated(60%);
+  }
+
+  &-100 {
+    @include str-truncated(100%);
+  }
 }
 .block-truncated {
@@ -78,10 +86,17 @@ hr {
   font-size: 14px;
 }
-table a code {
-  position: relative;
-  top: -2px;
-  margin-right: 3px;
+table {
+  a code {
+    position: relative;
+    top: -2px;
+    margin-right: 3px;
+  }
+
+  td.permission-x {
+    background: $table-permission-x-bg !important;
+    text-align: center;
+  }
 }
 .loading {
@@ -266,13 +281,6 @@ img.emoji {
   margin-bottom: 10px;
 }
-table {
-  td.permission-x {
-    background: $table-permission-x-bg !important;
-    text-align: center;
-  }
-}
-
 .btn-sign-in {
   text-shadow: none;
@@ -338,10 +346,11 @@ table {
 .dropzone .dz-preview .dz-progress {
   border-color: $border-color !important;
-}
-.dropzone .dz-preview .dz-progress .dz-upload {
-  background: $gl-success !important;
+  .dz-upload {
+    background: $gl-success !important;
+  }
+
 }
 .dz-message {
@@ -402,16 +411,6 @@ table {
   border-radius: $border-radius-default;
 }
-.str-truncated {
-  &-60 {
-    @include str-truncated(60%);
-  }
-
-  &-100 {
-    @include str-truncated(100%);
-  }
-}
-
 .tooltip {
   .tooltip-inner {
     word-wrap: break-word;

app/assets/stylesheets/framework/contextual-sidebar.scss

@@ -141,15 +141,15 @@
     svg {
       fill: $gl-text-color-secondary;
     }
-  }
-  .nav-item-name {
-    flex: 1;
-  }
-  li.active {
-    > a {
-      font-weight: $gl-font-weight-bold;
+    .nav-item-name {
+      flex: 1;
+    }
+    &.active {
+      > a {
+        font-weight: $gl-font-weight-bold;
+      }
     }
   }

app/assets/stylesheets/framework/dropdowns.scss

@@ -727,11 +727,11 @@
 .pika-single.animate-picker.is-bound {
   @include set-visible;
-}
-.pika-single.animate-picker.is-bound.is-hidden {
-  @include set-invisible;
-  overflow: hidden;
+  &.is-hidden {
+    @include set-invisible;
+    overflow: hidden;
+  }
 }
 @mixin dropdown-item-hover {

app/assets/stylesheets/framework/files.scss

@@ -165,22 +165,36 @@
         &:last-child {
           border-right: none;
         }
-      }
-      td.blame-commit {
-        padding: 5px 10px;
-        min-width: 400px;
-        max-width: 400px;
-        background: $gray-light;
-        border-left: 3px solid;
-        .commit-row-title {
-          display: flex;
+        &.blame-commit {
+          padding: 5px 10px;
+          min-width: 400px;
+          max-width: 400px;
+          background: $gray-light;
+          border-left: 3px solid;
+
+          .commit-row-title {
+            display: flex;
+          }
+
+          .item-title {
+            flex: 1;
+            margin-right: 0.5em;
+          }
+        }
+
+        &.line-numbers {
+          float: none;
+          border-left: 1px solid $blame-line-numbers-border;
+          i {
+            float: none;
+            margin-right: 0;
+          }
         }
-        .item-title {
-          flex: 1;
-          margin-right: 0.5em;
+        &.lines {
+          padding: 0;
         }
       }
@@ -195,20 +209,6 @@
           border-left-color: mix($blame-gray, $blame-cyan, $i / 4.0 * 100%);
         }
       }
-
-      td.line-numbers {
-        float: none;
-        border-left: 1px solid $blame-line-numbers-border;
-
-        i {
-          float: none;
-          margin-right: 0;
-        }
-      }
-
-      td.lines {
-        padding: 0;
-      }
     }
     &.logs {

app/assets/stylesheets/framework/filters.scss

@@ -469,10 +469,10 @@
       word-break: break-all;
     }
   }
-}
-.filter-dropdown-item.droplab-item-active .btn {
-  @extend %filter-dropdown-item-btn-hover;
+  &.droplab-item-active .btn {
+    @extend %filter-dropdown-item-btn-hover;
+  }
 }
 .filter-dropdown-loading {

app/assets/stylesheets/framework/header.scss

@@ -352,7 +352,81 @@
 .header-user .dropdown-menu-nav,
 .header-new .dropdown-menu-nav {
-  margin-top: $dropdown-vertical-offset;
+  margin-top: 4px;
+}
+
+.search {
+  margin: 4px 8px 0;
+
+  form {
+    height: 32px;
+    border: 0;
+    border-radius: $border-radius-default;
+    transition: border-color ease-in-out 0.15s, background-color ease-in-out 0.15s;
+
+    &:hover {
+      box-shadow: none;
+    }
+  }
+
+  &.search-active form {
+    box-shadow: none;
+
+    .search-input {
+      color: $gl-text-color;
+      transition: color ease-in-out 0.15s;
+    }
+
+    .search-input::placeholder {
+      color: $gl-text-color-tertiary;
+    }
+
+    .search-input-wrap {
+      .search-icon,
+      .clear-icon {
+        color: $gl-text-color-tertiary;
+        transition: color ease-in-out 0.15s;
+      }
+    }
+  }
+
+  .search-input {
+    color: $white-light;
+    background: none;
+    transition: color ease-in-out 0.15s;
+  }
+
+  .search-input::placeholder {
+    transition: color ease-in-out 0.15s;
+  }
+
+  .location-badge {
+    font-size: 12px;
+    margin: -4px 4px -4px -4px;
+    line-height: 25px;
+    padding: 4px 8px;
+    border-radius: 2px 0 0 2px;
+    height: 32px;
+    transition: border-color ease-in-out 0.15s;
+  }
+
+  &.search-active {
+    form {
+      background-color: rgba($indigo-200, .3);
+      box-shadow: none;
+    }
+
+    .location-badge {
+      background-color: $nav-badge-bg;
+      border-color: $border-color;
+    }
+
+    .search-input-wrap {
+      .clear-icon {
+        color: $white-light;
+      }
+    }
+  }
 }
 .breadcrumbs {

app/assets/stylesheets/framework/layout.scss

@@ -30,10 +30,10 @@ body {
 .container {
   padding-top: 0;
   z-index: 5;
-}
-.container .content {
-  margin: 0;
+  .content {
+    margin: 0;
+  }
 }
 .navless-container {
@@ -82,26 +82,26 @@ body {
     transition: background-color 0.15s, border-color 0.15s;
     background-color: $orange-500;
     border-color: $orange-500;
-  }
-  .alert-warning + .alert-warning {
-    background-color: $orange-600;
-    border-color: $orange-600;
-  }
-  .alert-warning + .alert-warning + .alert-warning {
-    background-color: $orange-700;
-    border-color: $orange-700;
-  }
-  .alert-warning + .alert-warning + .alert-warning + .alert-warning {
-    background-color: $orange-800;
-    border-color: $orange-800;
-  }
-  .alert-warning:only-of-type {
-    background-color: $orange-500;
-    border-color: $orange-500;
+    &:only-of-type {
+      background-color: $orange-500;
+      border-color: $orange-500;
+    }
+    + .alert-warning {
+      background-color: $orange-600;
+      border-color: $orange-600;
+      + .alert-warning {
+        background-color: $orange-700;
+        border-color: $orange-700;
+        + .alert-warning {
+          background-color: $orange-800;
+          border-color: $orange-800;
+        }
+      }
+    }
   }
 }

app/assets/stylesheets/framework/markdown_area.scss

@@ -173,21 +173,8 @@
   ul > li {
     white-space: nowrap;
   }
-}
-
-@media(max-width: $screen-xs-max) {
-  .atwho-view-ul {
-    width: 350px;
-  }
-
-  .atwho-view ul li {
-    overflow: hidden;
-    text-overflow: ellipsis;
-  }
-}
-// TODO: fallback to global style
-.atwho-view {
+  // TODO: fallback to global style
   .atwho-view-ul {
     padding: 8px 1px;
@@ -220,3 +207,14 @@
     }
   }
 }
+
+@media(max-width: $screen-xs-max) {
+  .atwho-view-ul {
+    width: 350px;
+  }
+
+  .atwho-view ul li {
+    overflow: hidden;
+    text-overflow: ellipsis;
+  }
+}

app/assets/stylesheets/framework/secondary-navigation-elements.scss

@@ -340,11 +340,64 @@
   }
 }
-.project-item-select-holder.btn-group {
-  display: flex;
-  max-width: 350px;
-  overflow: hidden;
-  float: right;
+.page-with-layout-nav {
+  .right-sidebar {
+    top: ($header-height + 1) * 2;
+  }
+
+  &.page-with-sub-nav {
+    .right-sidebar {
+      top: ($header-height + 1) * 3;
+
+      &.affix {
+        top: $header-height;
+      }
+    }
+  }
+}
+
+.with-performance-bar .page-with-layout-nav {
+  .right-sidebar {
+    top: ($header-height + 1) * 2 + $performance-bar-height;
+  }
+
+  &.page-with-sub-nav {
+    .right-sidebar {
+      top: ($header-height + 1) * 3 + $performance-bar-height;
+
+      &.affix {
+        top: $header-height + $performance-bar-height;
+      }
+    }
+  }
+}
+
+@media (max-width: $screen-xs-max) {
+  .top-area {
+    flex-flow: row wrap;
+
+    .nav-controls {
+      $controls-margin: $btn-xs-side-margin - 2px;
+      flex: 0 0 100%;
+
+      &.controls-flex {
+        display: flex;
+        flex-flow: row wrap;
+        align-items: center;
+        justify-content: center;
+        padding: 0 0 $gl-padding-top;
+      }
+
+      .controls-item,
+      .controls-item-full,
+      .controls-item:last-child {
+        flex: 1 1 35%;
+        display: block;
+        width: 100%;
+        margin: $controls-margin;
+      }
+    }
+  }
   .new-project-item-link {
     white-space: nowrap;

app/assets/stylesheets/framework/selects.scss

@@ -60,22 +60,12 @@
   border-radius: $border-radius-base;
   border: 1px solid $dropdown-border-color;
   min-width: 175px;
-  color: $gl-text-color;
-  z-index: 999;
+  color: $gl-grayish-blue;
 }
-.select2-drop-mask {
-  z-index: 998;
-}
-
-.select2-drop.select2-drop-above.select2-drop-active {
-  border-top: 1px solid $dropdown-border-color;
-  margin-top: -6px;
-}
-
-.select2-results li.select2-result-with-children > .select2-result-label {
-  font-weight: $gl-font-weight-bold;
-  color: $gl-text-color;
+.select2-results .select2-result-label,
+.select2-more-results {
+  padding: 10px 15px;
 }
 .select2-container-active {
@@ -144,58 +134,46 @@
   .select2-drop-auto-width & {
     padding: 15px 15px 5px;
   }
-}
-.select2-search input {
-  padding: 2px 25px 2px 5px;
-  background: $white-light image-url('select2.png');
-  background-repeat: no-repeat;
-  background-position: right 0 bottom 6px;
-  border: 1px solid $input-border;
-  border-radius: $border-radius-default;
-  transition: border-color ease-in-out 0.15s, box-shadow ease-in-out 0.15s;
-
-  &:focus {
-    border-color: $input-border-focus;
+  input {
+    padding: 2px 25px 2px 5px;
+    background: $white-light image-url('select2.png');
+    background-repeat: no-repeat;
+    background-position: right 0 bottom 6px;
+    border: 1px solid $input-border;
+    border-radius: $border-radius-default;
+    transition: border-color ease-in-out 0.15s, box-shadow ease-in-out 0.15s;
+
+    &:focus {
+      border-color: $input-border-focus;
+    }
+
+    &.select2-active {
+      background-color: $white-light;
+      background-image: image-url('select2-spinner.gif') !important;
+      background-repeat: no-repeat;
+      background-position: right 5px center !important;
+      background-size: 16px 16px !important;
+    }
   }
 }
-.select2-search input.select2-active {
-  background-color: $white-light;
-  background-image: image-url('select2-spinner.gif') !important;
-  background-repeat: no-repeat;
-  background-position: right 5px center !important;
-  background-size: 16px 16px !important;
+.select2-results .select2-no-results,
+.select2-results .select2-searching,
+.select2-results .select2-ajax-error,
+.select2-results .select2-selection-limit {
+  background: $gray-light;
+  display: list-item;
+  padding: 10px 15px;
 }
 .select2-results {
   margin: 0;
-  padding: #{$gl-padding / 2} 0;
-
-  .select2-no-results,
-  .select2-searching,
-  .select2-ajax-error,
-  .select2-selection-limit {
-    background: transparent;
-    padding: #{$gl-padding / 2} $gl-padding;
-  }
-
-  .select2-result-label,
-  .select2-more-results {
-    padding: #{$gl-padding / 2} $gl-padding;
-  }
-  .select2-highlighted {
-    background: transparent;
+  padding: 10px 0;
+  li.select2-result-with-children > .select2-result-label {
+    font-weight: $gl-font-weight-bold;
     color: $gl-text-color;
-
-    .select2-result-label {
-      background: $dropdown-item-hover-bg;
-    }
-  }
-
-  .select2-result {
-    padding: 0 1px;
   }
 }
@@ -212,6 +190,8 @@
 }
 .select2-highlighted {
+  background: $gl-link-color !important;
+
   .group-result {
     .group-path {
       color: $white-light;

app/assets/stylesheets/highlight/white.scss

@@ -217,13 +217,31 @@ $white-gc-bg: #eaf2f5;
   .cp { color: $white-cp; font-weight: $gl-font-weight-bold; }
   .c1 { color: $white-c1; font-style: italic; }
   .cs { color: $white-cs; font-weight: $gl-font-weight-bold; font-style: italic; }
-  .gd { color: $white-gd; background-color: $white-gd-bg; }
-  .gd .x { color: $white-gd-x; background-color: $white-gd-x-bg; }
+
+  .gd {
+    color: $white-gd;
+    background-color: $white-gd-bg;
+
+    .x {
+      color: $white-gd-x;
+      background-color: $white-gd-x-bg;
+    }
+  }
+
   .ge { font-style: italic; }
   .gr { color: $white-gr; }
   .gh { color: $white-gh; }
-  .gi { color: $white-gi; background-color: $white-gi-bg; }
-  .gi .x { color: $white-gi-x; background-color: $white-gi-x-bg; }
+
+  .gi {
+    color: $white-gi;
+    background-color: $white-gi-bg;
+
+    .x {
+      color: $white-gi-x;
+      background-color: $white-gi-x-bg;
+    }
+  }
+
   .go { color: $white-go; }
   .gp { color: $white-gp; }
   .gs { font-weight: $gl-font-weight-bold; }

app/assets/stylesheets/mailers/highlighted_diff_email.scss

@@ -158,13 +158,31 @@ span.highlight_word {
 .cp { color: $highlighted-cp; font-weight: $gl-font-weight-bold; }
 .c1 { color: $highlighted-c1; font-style: italic; }
 .cs { color: $highlighted-cs; font-weight: $gl-font-weight-bold; font-style: italic; }
-.gd { color: $highlighted-gd; background-color: $highlighted-gd-bg; }
-.gd .x { color: $highlighted-gd; background-color: $highlighted-gd-x-bg; }
+
+.gd {
+  color: $highlighted-gd;
+  background-color: $highlighted-gd-bg;
+
+  .x {
+    color: $highlighted-gd;
+    background-color: $highlighted-gd-x-bg;
+  }
+}
+
 .ge { font-style: italic; }
 .gr { color: $highlighted-gr; }
 .gh { color: $highlighted-gh; }
-.gi { color: $highlighted-gi; background-color: $highlighted-gi-bg; }
-.gi .x { color: $highlighted-gi; background-color: $highlighted-gi-x-bg; }
+
+.gi {
+  color: $highlighted-gi;
+  background-color: $highlighted-gi-bg;
+
+  .x {
+    color: $highlighted-gi;
+    background-color: $highlighted-gi-x-bg;
+  }
+}
+
 .go { color: $highlighted-go; }
 .gp { color: $highlighted-gp; }
 .gs { font-weight: $gl-font-weight-bold; }

app/assets/stylesheets/pages/builds.scss

@@ -68,18 +68,18 @@
     &.affix {
       top: $header-height;
-    }
-    // with sidebar
-    &.affix.sidebar-expanded {
-      right: 306px;
-      left: 16px;
-    }
-    // without sidebar
-    &.affix.sidebar-collapsed {
-      right: 16px;
-      left: 16px;
+      // with sidebar
+      &.sidebar-expanded {
+        right: 306px;
+        left: 16px;
+      }
+      // without sidebar
+      &.sidebar-collapsed {
+        right: 16px;
+        left: 16px;
+      }
     }
     &.affix-top {

app/assets/stylesheets/pages/cycle_analytics.scss

@@ -22,6 +22,11 @@
         }
       }
     }
+
+    svg {
+      width: 136px;
+      height: 136px;
+    }
   }
   .col-headers {
@@ -155,11 +160,6 @@
     }
   }
-  .landing svg {
-    width: 136px;
-    height: 136px;
-  }
-
   .fa-spinner {
     font-size: 28px;
     position: relative;

app/assets/stylesheets/pages/diff.scss

@@ -380,6 +380,10 @@
       }
     }
   }
+
+  .line_content {
+    white-space: pre-wrap;
+  }
 }
 .file-content .diff-file {
@@ -387,10 +391,6 @@
   border: none;
 }
-.diff-file .line_content {
-  white-space: pre-wrap;
-}
-
 .diff-wrap-lines .line_content {
   white-space: pre-wrap;
 }

app/assets/stylesheets/pages/environments.scss

@@ -255,23 +255,6 @@
   width: 100%;
   padding: 0;
   padding-bottom: 100%;
-}
-
-.prometheus-svg-container > svg {
-  position: absolute;
-  height: 100%;
-  width: 100%;
-  left: 0;
-  top: 0;
-
-  text {
-    fill: $gl-text-color;
-    stroke-width: 0;
-  }
-
-  .text-metric-bold {
-    font-weight: $gl-font-weight-bold;
-  }
   .label-axis-text {
     fill: $black;
@@ -286,42 +269,51 @@
     font-size: 12px;
   }
-  .legend-axis-text {
-    fill: $black;
-  }
-  .tick {
-    > line {
-      stroke: $gray-darker;
+  > svg {
+    position: absolute;
+    height: 100%;
+    width: 100%;
+    left: 0;
+    top: 0;
+    .label-axis-text,
+    .text-metric-usage {
+      fill: $black;
+      font-weight: $gl-font-weight-normal;
+      font-size: 12px;
     }
-    > text {
-      font-size: 12px;
+    .legend-axis-text {
+      fill: $black;
     }
-  }
-  .text-metric-title {
-    font-size: 12px;
-  }
-  .y-label-text,
-  .x-label-text {
-    fill: $gray-darkest;
-  }
-  .axis-tick {
-    stroke: $gray-darker;
-  }
-  @media (max-width: $screen-sm-max) {
-    .label-axis-text,
-    .text-metric-usage,
-    .legend-axis-text {
-      font-size: 8px;
+    .tick > text {
+      font-size: 12px;
+    }
+    .text-metric-title {
+      font-size: 12px;
+    }
+    .y-label-text,
+    .x-label-text {
+      fill: $gray-darkest;
+    }
+    .axis-tick {
+      stroke: $gray-darker;
     }
-    .tick > text {
-      font-size: 8px;
+    @media (max-width: $screen-sm-max) {
+      .label-axis-text,
+      .text-metric-usage,
+      .legend-axis-text {
+        font-size: 8px;
+      }
+
+      .tick > text {
+        font-size: 8px;
+      }
     }
   }
 }

app/assets/stylesheets/pages/issuable.scss

@@ -127,7 +127,16 @@
 }
 .right-sidebar {
-  a:not(.btn-retry),
+  position: absolute;
+  top: $header-height;
+  bottom: 0;
+  right: 0;
+  transition: width .3s;
+  background: $gray-light;
+  z-index: 200;
+  overflow: hidden;
+
+  a,
   .btn-link {
     color: inherit;
   }
@@ -228,17 +237,6 @@
   .btn-clipboard:hover {
     color: $gl-text-color;
   }
-}
-
-.right-sidebar {
-  position: absolute;
-  top: $header-height;
-  bottom: 0;
-  right: 0;
-  transition: width $right-sidebar-transition-duration;
-  background: $gray-light;
-  z-index: 200;
-  overflow: hidden;
   .issuable-sidebar {
     width: calc(100% + 100px);