.search_box {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  font-size: 24rpx;
  padding-top: 10rpx;
  z-index: 10;
  background: #2b2b2b;
  height: 90rpx;
}
.search_box view {
  width:720rpx;
  height:70rpx;
  line-height:70rpx;
  background:#f7f7f7;
  display:inline-block;
  border-radius:5rpx;
  color:#999999;
  padding-left:36rpx;
  box-sizing:border-box;
  margin-left:15rpx;
}
.search_box icon {
  position: relative;
  top: 8rpx;
  right: 8rpx;  
}