.aim {
    position: relative;
    overflow: hidden;
    margin: 0;
    clear: both;
    padding: 0;
}
.aim a{
    background-position: center center;
    cursor: pointer;
    display: block;
    overflow: hidden;
    position: relative;
    float: left;
    text-decoration: none
}
.aim a: hover, .aim a: visited{
    text-decoration: none;
}
.aim ul{
    list-style: none
}
.aim li{
    display: block;
    overflow: hidden;
    float: left;
}
.aim a span{
    color: #FFFFFF;
    bottom: 10px;
    left: 10px;
    width: 100%;
    display: block;
    padding: 2px 5px 5px;
    position: absolute;
    background: #000;
    font-size: 12px;
    font-weight: bold;
    line-height: 18px;
}