箭頭，可以用css3寫

.home_list li:after {
    position: absolute;
    right: 10px;
    top: 50%;
    display: inline-block;
    content: "";
    width: 7px;
    height: 7px;
    border: solid #999;
    border-width: 1px 1px 0 0;
    -webkit-transform: translate(0,-50%) rotate(45deg);
    transform: translate(0,-50%) rotate(45deg);
}