some mathml stuff

style.css

···
   line-height: 1.55;
 }
 
+math {
+ font-size: 1.12em;
+}
+
+mrow:hover {
+ background-color: rgba(0, 100, 255, 0.04);
+}
+
 .logo {
   font-weight: 1000;
   font-size: 24px;