.tab{overflow:hidden;border:1px solid #ccc;background-color:#f1f1f1}.tab button{background-color:inherit;float:left;border:none;outline:none;cursor:pointer;padding:14px 16px;transition:0.3s;font-size:17px}.tab button:hover{background-color:#ddd}.tab button.active{background-color:#ccc}.tabcontent{display:none;padding:6px 12px;border:1px solid #ccc;border-top:none}