Merge tag 'v3.0.0' into hometown-dev

app/javascript/styles/mastodon/basics.scss

@@ -8,7 +8,7 @@
 
 body {
   font-family: $font-sans-serif, sans-serif;
-  background: darken($ui-base-color, 8%);
+  background: darken($ui-base-color, 7%);
   font-size: 13px;
   line-height: 18px;
   font-weight: 400;
@@ -35,11 +35,19 @@ body {
   }
 
   &.app-body {
-    position: absolute;
-    width: 100%;
-    height: 100%;
     padding: 0;
-    background: $ui-base-color;
+
+    &.layout-single-column {
+      height: auto;
+      min-height: 100vh;
+      overflow-y: scroll;
+    }
+
+    &.layout-multiple-columns {
+      position: absolute;
+      width: 100%;
+      height: 100%;
+    }
 
     &.with-modals--active {
       overflow-y: hidden;
@@ -56,7 +64,6 @@ body {
 
     &--active {
       overflow-y: hidden;
-      margin-right: 13px;
     }
   }
 
@@ -79,9 +86,6 @@ body {
 
   &.admin {
     background: darken($ui-base-color, 4%);
-    position: fixed;
-    width: 100%;
-    height: 100%;
     padding: 0;
   }
 
@@ -137,12 +141,97 @@ button {
 
 .app-holder {
   &,
-  & > div {
+  & > div,
+  & > noscript {
     display: flex;
     width: 100%;
-    height: 100%;
     align-items: center;
     justify-content: center;
     outline: 0 !important;
   }
+
+  & > noscript {
+    height: 100vh;
+  }
+}
+
+.layout-single-column .app-holder {
+  &,
+  & > div {
+    min-height: 100vh;
+  }
+}
+
+.layout-multiple-columns .app-holder {
+  &,
+  & > div {
+    height: 100%;
+  }
+}
+
+.error-boundary,
+.app-holder noscript {
+  flex-direction: column;
+  font-size: 16px;
+  font-weight: 400;
+  line-height: 1.7;
+  color: lighten($error-red, 4%);
+  text-align: center;
+
+  & > div {
+    max-width: 500px;
+  }
+
+  p {
+    margin-bottom: .85em;
+
+    &:last-child {
+      margin-bottom: 0;
+    }
+  }
+
+  a {
+    color: $highlight-text-color;
+
+    &:hover,
+    &:focus,
+    &:active {
+      text-decoration: none;
+    }
+  }
+
+  &__footer {
+    color: $dark-text-color;
+    font-size: 13px;
+
+    a {
+      color: $dark-text-color;
+    }
+  }
+
+  button {
+    display: inline;
+    border: 0;
+    background: transparent;
+    color: $dark-text-color;
+    font: inherit;
+    padding: 0;
+    margin: 0;
+    line-height: inherit;
+    cursor: pointer;
+    outline: 0;
+    transition: color 300ms linear;
+    text-decoration: underline;
+
+    &:hover,
+    &:focus,
+    &:active {
+      text-decoration: none;
+    }
+
+    &.copied {
+      color: $valid-value-color;
+      transition: none;
+    }
+  }
 }