i {
    background: url(images/img/jt-arrow.png) no-repeat;
    position: absolute;
    right: 15px;
    width: 15px;
    height: 15px;
    background-size: cover;
    transform: rotate(270deg);
    top: 30px;}
.inner_left ul li i {
    transform: rotate(90deg);}

.inner_left ul li i.on {
    transform: rotate(270deg);}