CSS之Header--我的头部我做主

  <div class='header'>
    <div class="header-left">
      <span class='iconfont back-icon'></span>
    </div>
    <div class="header-input">
      <span class="iconfont"></span>
      输入城市/景点/游玩主题
    </div>
      <div class="header-right">
        城市
        <span class='iconfont arrow-icon'></span>
      </div>
  </div>

  .header
    display:flex
    line-height:.86rem
    background:red
    color:#fff
    .header-left
      width:.64rem
      float:left
      .back-icon
        padding:.12rem
        text-align:center
        font-size :.4rem
    .header-input
      flex:1
      height:.68rem
      margin-top:.12rem
      margin-left:.2rem
      padding-left:.2rem
      background:#fff
      border-radius:.1rem
      color:#ccc
    .header-right
      min-width:1.04rem
      padding:0 .1rem
      float:right
      text-align:center
      color:#fff
      .arrow-icon
        margin-left:-.04rem
        font-size:.24rem