doc/html - style adjustment

Prevent a scrollbar from appearing on the SchedMD logo in the top left.

doc/html/style.css

@@ -235,6 +235,7 @@ input[type="checkbox"] {
 	display: block;
 	width: 100%;
 	height: 0;
+	overflow: hidden;
 	padding-top: 23.1%;
 	background: url("schedmd.png") no-repeat 0 0;
 	background-size: contain;