这是我的HTML:
<select id="ddlProducts" name="ddProducts">
<option>Product1 : Electronics </option>
<option>Product2 : Sports </option>
</select>
我想让产品的名称(即。'Product1'， 'Product2'，等等)，以及它的类别(即。电子，体育等)斜体，只使用CSS。我发现了一个老问题，提到这是不可能使用HTML和CSS，但希望，现在有一个解决方案。
当前回答
(() => { 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"> </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>
其他回答
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:
可以应用于<option>元素的样式属性很少。
这是因为这种类型的元素是一个“替换元素”的例子。它们依赖于操作系统，不是HTML/浏览器的一部分。它不能通过CSS样式。
有一些替换的插件/库看起来像<select>，但实际上是由常规的HTML元素组成的，可以设置样式。
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>
现在是2017年，有可能针对特定的选择。在我的项目中，我有一个class="variations"的表，选择选项在表单元格td="value"中，选择有一个ID select#pa_color。 option元素还有一个class选项="attached"(在其他类标记中)。 如果用户作为批发客户登录，他们可以看到所有的颜色选项。但是零售客户不允许购买2种颜色的选择，所以我禁用了它们
<option class="attached" disabled>color 1</option>
<option class="attached" disabled>color 2</option>
这需要一点逻辑，但以下是我如何针对禁用的选择选项。
CSS
table.variations td.value select#pa_color option.attached:disabled {
display: none !important;
}
这样，只有批发客户才能看到我的颜色选择。
它肯定会起作用。 选择选项是由OS而不是html呈现的。这就是为什么CSS样式没有效果，..一般 选项{font-size: value; background - color: colorCode; border - radius:价值;｝ 这将工作，但我们不能自定义填充，边距等。
下面的代码100%工作自定义选择标记从这个例子
var x, i, j, selElmnt, a, b, c; /*look for any elements with the class "custom-select":*/ x = document.getElementsByClassName("custom-select"); for (i = 0; i < x.length; i++) { selElmnt = x[i].getElementsByTagName("select")[0]; /*for each element, create a new DIV that will act as the selected item:*/ a = document.createElement("DIV"); a.setAttribute("class", "select-selected"); a.innerHTML = selElmnt.options[selElmnt.selectedIndex].innerHTML; x[i].appendChild(a); /*for each element, create a new DIV that will contain the option list:*/ b = document.createElement("DIV"); b.setAttribute("class", "select-items select-hide"); for (j = 1; j < selElmnt.length; j++) { /*for each option in the original select element, create a new DIV that will act as an option item:*/ c = document.createElement("DIV"); c.innerHTML = selElmnt.options[j].innerHTML; c.addEventListener("click", function(e) { /*when an item is clicked, update the original select box, and the selected item:*/ var y, i, k, s, h; s = this.parentNode.parentNode.getElementsByTagName("select")[0]; h = this.parentNode.previousSibling; for (i = 0; i < s.length; i++) { if (s.options[i].innerHTML == this.innerHTML) { s.selectedIndex = i; h.innerHTML = this.innerHTML; y = this.parentNode.getElementsByClassName("same-as-selected"); for (k = 0; k < y.length; k++) { y[k].removeAttribute("class"); } this.setAttribute("class", "same-as-selected"); break; } } h.click(); }); b.appendChild(c); } x[i].appendChild(b); a.addEventListener("click", function(e) { /*when the select box is clicked, close any other select boxes, and open/close the current select box:*/ e.stopPropagation(); closeAllSelect(this); this.nextSibling.classList.toggle("select-hide"); this.classList.toggle("select-arrow-active"); }); } function closeAllSelect(elmnt) { /*a function that will close all select boxes in the document, except the current select box:*/ var x, y, i, arrNo = []; x = document.getElementsByClassName("select-items"); y = document.getElementsByClassName("select-selected"); for (i = 0; i < y.length; i++) { if (elmnt == y[i]) { arrNo.push(i) } else { y[i].classList.remove("select-arrow-active"); } } for (i = 0; i < x.length; i++) { if (arrNo.indexOf(i)) { x[i].classList.add("select-hide"); } } } /*if the user clicks anywhere outside the select box, then close all select boxes:*/ document.addEventListener("click", closeAllSelect); /*the container must be positioned relative:*/ .custom-select { position: relative; font-family: Arial; } .custom-select select { display: none; /*hide original SELECT element:*/ } .select-selected { background-color: DodgerBlue; } /*style the arrow inside the select element:*/ .select-selected:after { position: absolute; content: ""; top: 14px; right: 10px; width: 0; height: 0; border: 6px solid transparent; border-color: #fff transparent transparent transparent; } /*point the arrow upwards when the select box is open (active):*/ .select-selected.select-arrow-active:after { border-color: transparent transparent #fff transparent; top: 7px; } /*style the items (options), including the selected item:*/ .select-items div,.select-selected { color: #ffffff; padding: 8px 16px; border: 1px solid transparent; border-color: transparent transparent rgba(0, 0, 0, 0.1) transparent; cursor: pointer; } /*style items (options):*/ .select-items { position: absolute; background-color: DodgerBlue; top: 100%; left: 0; right: 0; z-index: 99; } /*hide the items when the select box is closed:*/ .select-hide { display: none; } .select-items div:hover, .same-as-selected { background-color: rgba(0, 0, 0, 0.1); } <div class="custom-select" style="width:200px;"> <select> <option value="0">Select car:</option> <option value="1">Audi</option> <option value="2">BMW</option> <option value="3">Citroen</option> <option value="4">Ford</option> <option value="5">Honda</option> <option value="6">Jaguar</option> <option value="7">Land Rover</option> <option value="8">Mercedes</option> <option value="9">Mini</option> <option value="10">Nissan</option> <option value="11">Toyota</option> <option value="12">Volvo</option> </select> </div>
