.collapsible{height:0;transition:height .2s;overflow:hidden}.collapsible.expanded{height:auto}.collapsible-title{cursor:pointer;-webkit-user-select:none;user-select:none;text-decoration:underline}.collapsible-title:hover{outline:1px dashed #000;box-shadow:0 0 20px -5px #000}.collapsible-title:active{color:purple;box-shadow:0 0 20px purple}