footer {
    position: fixed;
    width: 100%;
    height: 2rem;
    left: 0;
    bottom:60px;
    color: #666;
}

.no .grid li a.yuyan {
    border: 2px #666 solid;
}

.unbtn-control{
    position: absolute;
    right: 0px;
    top: 20px;
    line-height: 1.5rem;
    border: 0;
    color: #888;
    background: none;
    cursor: not-allowed;
    pointer-events:none;
}
.wrap {
     min-height:auto; 
}
img{ max-width:150%;}