.index-container{-webkit-box-align:center;-ms-flex-align:center;align-items:center;position:relative;width:100%;height:100%;background:url(/img/index.png) no-repeat top/cover}.index-container,.wel{display:-webkit-box;display:-ms-flexbox;display:flex;margin:0 auto}.wel{-ms-flex-wrap:wrap;flex-wrap:wrap;width:1100px}