移动端 顶部搜索框样式

 .container {
    height: 100%;
  }
  .header {
    padding: 8px 15px;
    background-color: #d33d3e;
    overflow: hidden;
  }

.icon-return {
    text-align: center;
    vertical-align: middle;
    color: #fff;
    font-size: 26px;
    font-weight: 600;
    line-height: 32px;
    margin-right: 10px;
  }

.search-box {
    display: inline-block;
    vertical-align: middle;
    width: calc(100% - 100px);
    line-height: 32px;
    background-color: #fff;
    border-radius: 5px;
    padding-left: 10px;
    padding-right: 10px;
  }
  .search-box>i {
    color: #707070;
  }

.btn-search {
    display: inline-block;
    vertical-align: middle;
    line-height: 32px;
    padding-left: 10px;
    color: #fff;
    font-size: 15px;
    font-weight: 600;
  }