这就是你要找的东西吗?我用jQuery做的!

运行代码片段

$(".custom-select").each(function() { var classes = $(this).attr("class"), id = $(this).attr("id"), name = $(this).attr("name"); var template = '<div class="' + classes + '">'; template += '<span class="custom-select-trigger">' + $(this).attr("placeholder") + '</span>'; template += '<div class="custom-options">'; $(this).find("option").each(function() { template += '<span class="custom-option ' + $(this).attr("class") + '" data-value="' + $(this).attr("value") + '">' + $(this).html() + '</span>'; }); template += '</div></div>'; $(this).wrap('<div class="custom-select-wrapper"></div>'); $(this).hide(); $(this).after(template); }); $(".custom-option:first-of-type").hover(function() { $(this).parents(".custom-options").addClass("option-hover"); }, function() { $(this).parents(".custom-options").removeClass("option-hover"); }); $(".custom-select-trigger").on("click", function() { $('html').one('click',function() { $(".custom-select").removeClass("opened"); }); $(this).parents(".custom-select").toggleClass("opened"); event.stopPropagation(); }); $(".custom-option").on("click", function() { $(this).parents(".custom-select-wrapper").find("select").val($(this).data("value")); $(this).parents(".custom-options").find(".custom-option").removeClass("selection"); $(this).addClass("selection"); $(this).parents(".custom-select").removeClass("opened"); $(this).parents(".custom-select").find(".custom-select-trigger").text($(this).text()); }); body { font-family: 'Roboto', sans-serif; } .custom-select-wrapper { position: relative; display: inline-block; user-select: none; } .custom-select-wrapper select { display: none; } .custom-select { position: relative; display: inline-block; } .custom-select-trigger { position: relative; display: block; width: 170px; padding: 0 84px 0 22px; font-size: 19px; font-weight: 300; color: #5f5f5f; line-height: 50px; background: #EAEAEA; border-radius: 4px; cursor: pointer; margin-left:20px; border: 1px solid #5f5f5f; transition: all 0.3s; } .custom-select-trigger:hover { background-color: #d9d9d9; transition: all 0.3s; } .custom-select-trigger:after { position: absolute; display: block; content: ''; width: 10px; height: 10px; top: 50%; right: 25px; margin-top: -3px; border-bottom: 1px solid #5f5f5f; border-right: 1px solid #5f5f5f; transform: rotate(45deg) translateY(-50%); transition: all 0.4s ease-in-out; transform-origin: 50% 0; } .custom-select.opened .custom-select-trigger:after { margin-top: 3px; transform: rotate(-135deg) translateY(-50%); } .custom-options { position: absolute; display: block; top: 100%; left: 0; right: 0; margin: 15px 0; border: 1px solid #b5b5b5; border-radius: 4px; box-sizing: border-box; box-shadow: 0 2px 1px rgba(0,0,0,.07); background: #fff; transition: all 0.4s ease-in-out; margin-left: 20px; opacity: 0; visibility: hidden; pointer-events: none; transform: translateY(-15px); } .custom-select.opened .custom-options { opacity: 1; visibility: visible; pointer-events: all; transform: translateY(0); } .custom-options:before { position: absolute; display: block; content: ''; bottom: 100%; right: 25px; width: 7px; height: 7px; margin-bottom: -4px; border-top: 1px solid #b5b5b5; border-left: 1px solid #b5b5b5; background: #fff; transform: rotate(45deg); transition: all 0.4s ease-in-out; } .option-hover:before { background: #f9f9f9; } .custom-option { position: relative; display: block; padding: 0 22px; border-bottom: 1px solid #b5b5b5; font-size: 18px; font-weight: 600; color: #b5b5b5; line-height: 47px; cursor: pointer; transition: all 0.15s ease-in-out; } .custom-option:first-of-type { border-radius: 4px 4px 0 0; } .custom-option:last-of-type { border-bottom: 0; border-radius: 0 0 4px 4px; } .custom-option:hover, .custom-option.selection { background: #f2f0f0; } <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script> <select name="sources" id="sources" class="custom-select sources" placeholder="My Categories"> <option value="categoryOne">Category 1</option> <option value="categoryTwo">Category 2</option> <option value="categoryThree">Category 3</option> <option value="categoryFour">Category 4</option> </select>

这里留下一个快速的替代方法，使用表上的类切换。它的行为与选择非常相似，但是可以使用过渡、滤镜和颜色进行样式化，每个子元素都是独立的。

function toggleSelect(){ if (store.classList[0] === "hidden"){ store.classList = "viewfull" } else { store.classList = "hidden" } } #store { overflow-y: scroll; max-height: 110px; max-width: 50% } .hidden { display: none } .viewfull { display: block } #store :nth-child(4) { background-color: lime; } span {font-size:2rem;cursor:pointer} <span onclick="toggleSelect()">⮋</span> <div id="store" class="hidden"> <ul><li><a href="#keylogger">keylogger</a></li><li><a href="#1526269343113">1526269343113</a></li><li><a href="#slow">slow</a></li><li><a href="#slow2">slow2</a></li><li><a href="#Benchmark">Benchmark</a></li><li><a href="#modal">modal</a></li><li><a href="#buma">buma</a></li><li><a href="#1526099371108">1526099371108</a></li><a href="#1526099371108o">1526099371108o</a></li><li><a href="#pwnClrB">pwnClrB</a></li><li><a href="#stars%20u">stars%20u</a></li><li><a href="#pwnClrC">pwnClrC</a></li><li><a href="#stars ">stars </a></li><li><a href="#wello">wello</a></li><li><a href="#equalizer">equalizer</a></li><li><a href="#pwnClrA">pwnClrA</a></li></ul> </div>

(() => { const optionValues = document.querySelectorAll(".search-form__value"); const searchOptions = document.querySelector(".search-form__selector"); const dropdown = document.querySelector(".search-form__dropdown"); const input = document.getElementById("search-form-loc"); const selectorText = document.querySelector(".search-form__label--loc"); searchOptions.addEventListener("click", function () { dropdownHandler(); }); optionValues.forEach((option) => { option.addEventListener("click", function () { updateUI(input, selectorText, this); }); }); window.addEventListener("mouseup", function (event) { if (event.target != dropdown) { dropdown.classList.remove("search-form__dropdown--show"); } }); function dropdownHandler() { dropdown.classList.toggle("search-form__dropdown--show"); } function updateUI(input, selectorText, referedThis) { input.value = referedThis.textContent.trim(); selectorText.textContent = referedThis.textContent.trim(); dropdown.classList.remove("search-form__dropdown--show"); } })(); /* CSS Reset Starts */ *, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; } body { font-family: sans-serif; color: #777; background-color: slateblue !important; } /* CSS Reset Ends */ .search-form { display: flex; align-items: center; width: max-content; max-width: 700px; margin: 100px auto; background: #fff; } .search-form__label { margin-right: 40px; } .search-form__selector { display: flex; align-items: center; gap: 12px; cursor: pointer; font-size: 14px; padding: 12px 18px; background: #fff; position: relative; z-index: 1000; } .search-form__line { height: 100%; width: 1px; background: #777; margin-left: auto; } .search-form__icon { font-size: 24px; } /* Dropdown */ .search-form__dropdown { list-style: none; position: absolute; left: 0; top: 100%; box-shadow: 0 7px 30px -10px #96aa6480; width: 100%; min-width: max-content; transition: 0.4s; background-color: #fff; opacity: 0; visibility: hidden; z-index: 10; pointer-events: none; transform: translateY(20px); cursor: pointer; } .search-form__value { padding: 7px; } .search-form__value:hover { background: #0667d5; color: #fff; } .pos-rel { position: relative; } .search-form__dropdown--show { opacity: 1; visibility: visible; pointer-events: visible; -webkit-transform: translate(0); -ms-transform: translate(0); transform: translate(0); } <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8" /> <meta http-equiv="X-UA-Compatible" content="IE=edge" /> <meta name="viewport" content="width=device-width, initial-scale=1.0" /> <title>Document</title> <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css" /> </head> <body> <form class="search-form"> <input type="hidden" name="search-form-loc" id="search-form-loc" /> <div class="pos-rel"> <div class="search-form__selector"> <p class="search-form__label search-form__label--loc">Select From List</p> <div class="search-form__line">&nbsp;</div> <i class="fa fa-caret-down search-form__icon"></i> </div> <ul class="search-form__dropdown"> <li class="search-form__value" data-loc="search-form-loc">UK</li> <li class="search-form__value" data-loc="search-form-loc">Barcelona</li> <li class="search-form__value" data-loc="search-form-loc">Brazil</li> <li class="search-form__value" data-loc="search-form-loc">Hungary</li> </ul> </div> </form> </body> </html>

您可以在某种程度上设置选项元素的样式。

使用* CSS选择器，您可以在系统绘制的框内设置选项的样式。

例子:

#ddlProducts *
{
 border-radius: 15px;
 background-color: red;
}

它看起来是这样的:

不，这是不可能的，因为这些元素的样式是由用户的操作系统处理的。MSDN将在这里回答你的问题:

除了background-color和color，通过style对象应用于option元素的样式设置将被忽略。

即使没有太多的属性要改变，但你可以实现以下样式只有css:

.options { 边框:1px solid #e5e5e5; 填充:10 px; ｝ 选择{ 字体大小:14 px; 边界:没有; 宽度:100%; 背景:白色; ｝ < div class = "选项”> <选择> 苹果<选项值= " " > < /选项> 香蕉<选项值= " " > < /选项> 橙色<选项值= " " > < /选项> 芒果<选项值= " " > < /选项> < /选择> < / div >