Avoid overlapping links, again

As indicated in

git-for-windows@6dff8ae8b4#commitcomment-22378751

Signed-off-by: Johannes Schindelin <[email protected]>

Author: dscho

css/small.css

@@ -10,7 +10,7 @@
 	}
 }
 
-@media screen and (max-width: 700px) {
+@media screen and (max-width: 750px) {
 	html {
 		font-size: 16px;
 	}