1 files changed, 19 insertions, 8 deletions
diff --git a/src/librustdoc/html/static/main.css b/src/librustdoc/html/static/main.css
index 2ecd5589386..774d413fffa 100644
--- a/src/librustdoc/html/static/main.css
+++ b/src/librustdoc/html/static/main.css
@@ -165,7 +165,7 @@ nav.sub {
 
 /* Everything else */
 
-.js-only, .hidden { display: none; }
+.js-only, .hidden { display: none !important; }
 
 .sidebar {
     padding: 10px;
@@ -448,19 +448,30 @@ a {
 
 tr.result span.primitive::after { content: ' (primitive type)'; font-style: italic; }
 
+body.blur > :not(#help) {
+    filter: blur(8px);
+    -webkit-filter: blur(8px);
+    opacity: .7;
+}
+
 #help {
+    width: 100%;
+    height: 100vh;
+    position: fixed;
+    top: 0;
+    left: 0;
+    display: flex;
+    justify-content: center;
+    align-items: center;
+}
+#help > div {
+    flex: 0 0 auto;
     background: #e9e9e9;
     box-shadow: 0 0 6px rgba(0,0,0,.2);
-    position: absolute;
-    top: 300px;
-    left: 50%;
-    margin-top: -125px;
-    margin-left: -275px;
     width: 550px;
     height: 300px;
     border: 1px solid #bfbfbf;
 }
-
 #help dt {
     float: left;
     border-radius: 4px;
@@ -475,7 +486,7 @@ tr.result span.primitive::after { content: ' (primitive type)'; font-style: ital
 #help dd { margin: 5px 33px; }
 #help .infos { padding-left: 0; }
 #help h1 { margin-top: 0; }
-#help div {
+#help > div div {
     width: 50%;
     float: left;
     padding: 20px;