Axenide

Responsive WhatsApp Web

Using Stylus and adding this CSS will get you a responsive UI for WhatsApp Web (which I think is long overdue, come on Meta).

@media (max-width: 747px){
     #app>div>div:last-child>header {
         display: none;
    }
     div:has( > #side):not(:hover) {
         max-width: 80px !important;
 }