body{ background: url(sj_04.jpg); background-size:100%}
.m-tt-pic{display: block; width: 100%;}
.m-lst-lc{ overflow: hidden; background: url(sj_02.jpg) repeat-y; background-size:100% ;}
.m-lst-lc li{display: block; float: left; width: 25%; margin:0 0 14% 6%; padding-top: 13%; position: relative;}
.m-lst-lc li img{ width: 100%; border-radius:4px;box-shadow:0 0px 10px rgba(0,0,0,0.5)}