-events: none
}
 div.hint-content::before {
     width: 0px;
     bottom: 0;
     left: 0;
     content: '';
     background-color: #fff;
     height: 1px;
     position: absolute;
     transition: width 0.4s;
}
 div.hint-content::before {
     width: 180px;
     transition: width 0.4s;
}
 div.hint-content::after {
     -webkit-transform-origin: 0 50%;
     transform-origin: 0 50%;
     -webkit-transform: rotate(-225deg);
     transform: rotate(-225deg);
     bottom: 0;
     left: 0;
     width: 80px;
     