eg:
下拉点击总会被挡住
解决办法:
1、text 输入框,加上 autocomplete="off" :
<input class="form-control" id="RealTimeFly_end_city" name="RealTimeFly_end_city" type="text" placeholder="请填写实时到达城市" value="" autocomplete="off">
2、password 密码输入框,加上 autocomplete="new-password":
<input class="form-control" id="RealTimeFly_end_city" name="RealTimeFly_end_city" type="password" placeholder="请填写实时到达城市" value="" autocomplete="new-password">