时间戳

首页 > 解决方案 > 添加类以选择标签

css - 添加类以选择标签

问题描述

我正在尝试向选择标签添加一个类，以便下拉菜单可以继承一些 CSS 样式，但我无法应用该样式。我的课程格式不正确吗？

这是我的代码：

packagesmenu {
    box-shadow: none!important;
    background: transparent!important;
    background-color: transparent!important;
    padding: 8px 5px!important;
    border-top: 1px solid #AAA!important;
    border-left: 1px solid #AAA!important;
    border-right: 1px solid #AAA!important;
    border-bottom: 1px solid #AAA!important;
    max-width: 100%!important;
    outline: none;
    border-radius: 0;
    margin-bottom:15px!important;
    text-transform:none!important;
}

packagesmenu:focus {
box-shadow: 0 0 5px 0 #ee2b30!important;
border-top: 1px solid #ee2b30!important ;
    border-left: 1px solid #ee2b30!important;
    border-right: 1px solid #ee2b30!important;
    border-bottom: 1px solid #ee2b30!important;
}
<select style="width:100%;display:block;max-width:600px;margin:0 auto;" onchange="window.location.href = this.value" class="packagesmenu" name="packagesmenu" >
<option>Find your location</option>
<option value="https://go.booker.com/location/vixennailsandspamilton/buy/series">
  Milton
</option>
<option value="https://go.booker.com/location/vixennailsandspamississauga/buy/series">
  Mississauga</option>
<option value="https://go.booker.com/location/vixennailsandspadanforth/buy/series">
  Danforth
</option>
<option value="https://go.booker.com/location/vixenburlington/buy/series">
  Burlington
</option>
<option value="https://go.booker.com/location/VixenNailsandSpaOakville/buy/series">
  Oakville
</option>
</select>

标签： cssselectdropdown

解决方案

我清理了你的CSS。内联css也是。不要使用内联样式——这很糟糕而且很难维护，有一天你会发现，现在请相信我。不要使用!importand，这是不好的做法，只是不要。

在 CSS 中声明：

  • 元素body select使用标签
  • 一个类.someclass使用点和类名
  • 一个 id#bigid使用哈希和 id 名称

没有空格。但之后:总是;放空间。现在允许没有空格，但良好的做法、可读性和传统是严格的 - 空格！

body{
background: #000;           /* this to see background of select */
}
select{                 /* no inline css */
display: block;
width: 100%;
max-width: 600px;
margin: 0 auto;
color: #aaa;
}
.packagesmenu {
background: 0;
border: 1px solid #aaa;
border-radius: 0;
outline: none;
max-width: 100%;
padding: 8px 5px;
margin-bottom: 15px;
}
.packagesmenu:focus {
box-shadow: 0 0 5px 0 #ee2b30;
border: 1px solid #ee2b30;
}
<select onchange="window.location.href = this.value" class="packagesmenu" name="packagesmenu" >
<option>Find your location</option>
<option value="https://go.booker.com/location/vixennailsandspamilton/buy/series">
  Milton
</option>
<option value="https://go.booker.com/location/vixennailsandspamississauga/buy/series">
  Mississauga</option>
<option value="https://go.booker.com/location/vixennailsandspadanforth/buy/series">
  Danforth
</option>
<option value="https://go.booker.com/location/vixenburlington/buy/series">
  Burlington
</option>
<option value="https://go.booker.com/location/VixenNailsandSpaOakville/buy/series">
  Oakville
</option>
</select>

推荐阅读