Merge branch 'master' into master

_sass/content.scss

@@ -165,6 +165,10 @@
     }
   }
 
+  summary {
+    cursor: pointer;
+  }
+
   h1,
   h2,
   h3,

_sass/search.scss

@@ -308,6 +308,8 @@
   @include mq(md) {
     .main {
       position: fixed;
+      right: 0;
+      left: 0;
     }
   }