bug 1519484 - Working on css overrides on topsites. (#4652)

content-src/components/DiscoveryStreamBase/_DiscoveryStreamBase.scss

@@ -4,6 +4,8 @@
   grid-template-columns: repeat($columns, 1fr);
   grid-column-gap: 48px;
   grid-row-gap: 10px;
+  width: 936px;
+  margin: 0 auto;
 
   @while $columns > 0 {
     .ds-column-#{$columns} {

content-src/components/DiscoveryStreamComponents/TopSites/_TopSites.scss

@@ -10,5 +10,92 @@
     .section-top-bar {
       display: none;
     }
+
+    .top-site-outer {
+      padding: 0 12px;
+    }
+
+    .top-sites-list {
+      margin: 0 -12px;
+    }
+  }
+
+  // Only show 6 cards for 2/3 and 1/3
+  // XXX hide-for-narrow is wrapping a previous functionality, can do better.
+  .hide-for-narrow {
+    display: none;
+  }
+}
+
+// Only show 8 cards for the full row.
+// XXX hide-for-narrow is wrapping a previous functionality, can do better.
+.ds-column-9,
+.ds-column-10,
+.ds-column-11,
+.ds-column-12 {
+  .ds-top-sites {
+    .hide-for-narrow {
+      display: inline-block;
+    }
+  }
+}
+
+// Size overrides for topsites in the 2/3 view.
+.ds-column-5,
+.ds-column-6,
+.ds-column-7,
+.ds-column-8 {
+  .ds-top-sites {
+
+    .top-site-outer {
+      padding: 0 10px;
+    }
+
+    .top-sites-list {
+      margin: 0 -10px;
+    }
+
+    .top-site-inner {
+      --leftPanelIconWidth: 84.67px;
+
+      .tile {
+        width: var(--leftPanelIconWidth);
+        height: var(--leftPanelIconWidth);
+      }
+
+      .title {
+        width: var(--leftPanelIconWidth);
+      }
+    }
+  }
+}
+
+// Size overrides for topsites in the 1/3 view.
+.ds-column-1,
+.ds-column-2,
+.ds-column-3,
+.ds-column-4 {
+  .ds-top-sites {
+
+    .top-site-outer {
+      padding: 0 8px;
+    }
+
+    .top-sites-list {
+      margin: 0 -8px;
+    }
+
+    .top-site-inner {
+      --rightPanelIconWidth: 82.67px;
+
+      .tile {
+        width: var(--rightPanelIconWidth);
+        height: var(--rightPanelIconWidth);
+      }
+
+      .title {
+        width: var(--rightPanelIconWidth);
+      }
+    }
   }
 }