无法突出显示下拉焦点

Question

我试图在页面加载时突出显示选择标记的下拉列表。我在select标签中有多个类我尝试将焦点应用于所有这些类但它不起作用。任何人都可以看一下吗？

div.cs-select select:focus {
  outline: thin dotted;
  outline: 5px auto -webkit-focus-ring-color;
  outline-offset: -2px;
}

<div id="originalAmount_@differAmountId" class="divoriginalAmount">

  <select class="cs-select cs-skin-border billAccountAmount " data-label="@StringResource.Lbl_Pay " id="@Html.IdFor(m => Model.AmountOptionList)">

Answer 1

这是你与javascript有关的事情。

document.getElementById("AmountOptionList").focus();

div.cs-select select:focus {
  outline: thin dotted;
  outline: 5px auto -webkit-focus-ring-color;
  outline-offset: -2px;
}

<div id="originalAmount_@differAmountId" class="divoriginalAmount">

  <select class="cs-select cs-skin-border billAccountAmount " data-label="@StringResource.Lbl_Pay " id="AmountOptionList">
    <option>Options</option>
  </select>

</div>