这是我的HTML:
<select id="ddlProducts" name="ddProducts">
<option>Product1 : Electronics </option>
<option>Product2 : Sports </option>
</select>
我希望将产品的名称(即&#39;产品1&#39;,&#39;产品2&#39;等)粗体化,并将其类别(即电子产品,体育用品等)斜体化,仅使用CSS。我发现了一个老问题,提到它不可能使用HTML和CSS,但希望现在有一个解决方案。
答案 0 :(得分:144)
一般情况下,你不能。此元素是“替换元素”的示例,这些元素取决于操作系统,不属于HTML /浏览器。它无法通过CSS
设置样式。
有替换插件/库看起来像<select>
但实际上由常规HTML
元素组成, CAN 可以设置样式。
答案 1 :(得分:55)
不,这是不可能的,因为这些元素的样式由用户的操作系统处理。 MSDN will answer your question here:
除了
background-color
和color
之外,将忽略通过选项元素的样式对象应用的样式设置。
答案 2 :(得分:25)
您可以在一定程度上设置选项元素的样式。
使用* CSS标签,您可以设置系统绘制的框内的选项样式。
示例:
#ddlProducts *
{
border-radius:15px;
background-color:red;
}
这将是这样的:
答案 3 :(得分:21)
我发现并使用了这个选择和选项样式的好例子。你可以用这个选择你想做的所有。这是Fiddle
<强> HTML 强>
<select id="selectbox1">
<option value="">Select an option…</option>
<option value="aye">Aye</option>
<option value="eh">Eh</option>
<option value="ooh">Ooh</option>
<option value="whoop">Whoop</option>
</select>
<select id="selectbox2">
<option value="">Month…</option>
<option value="january">January</option>
<option value="february">February</option>
<option value="march">March</option>
<option value="april">April</option>
<option value="may">May</option>
<option value="june">June</option>
<option value="july">July</option>
<option value="august">August</option>
<option value="september">September</option>
<option value="october">October</option>
<option value="november">November</option>
<option value="december">December</option>
</select>
<强> CSS 强>
body {
padding:50px;
background-color:white;
}
.s-hidden {
visibility:hidden;
padding-right:10px;
}
.select {
cursor:pointer;
display:inline-block;
position:relative;
font:normal 11px/22px Arial, Sans-Serif;
color:black;
border:1px solid #ccc;
}
.styledSelect {
position:absolute;
top:0;
right:0;
bottom:0;
left:0;
background-color:white;
padding:0 10px;
font-weight:bold;
}
.styledSelect:after {
content:"";
width:0;
height:0;
border:5px solid transparent;
border-color:black transparent transparent transparent;
position:absolute;
top:9px;
right:6px;
}
.styledSelect:active, .styledSelect.active {
background-color:#eee;
}
.options {
display:none;
position:absolute;
top:100%;
right:0;
left:0;
z-index:999;
margin:0 0;
padding:0 0;
list-style:none;
border:1px solid #ccc;
background-color:white;
-webkit-box-shadow:0 1px 2px rgba(0, 0, 0, 0.2);
-moz-box-shadow:0 1px 2px rgba(0, 0, 0, 0.2);
box-shadow:0 1px 2px rgba(0, 0, 0, 0.2);
}
.options li {
padding:0 6px;
margin:0 0;
padding:0 10px;
}
.options li:hover {
background-color:#39f;
color:white;
}
<强> JS 强>
// Iterate over each select element
$('select').each(function () {
// Cache the number of options
var $this = $(this),
numberOfOptions = $(this).children('option').length;
// Hides the select element
$this.addClass('s-hidden');
// Wrap the select element in a div
$this.wrap('<div class="select"></div>');
// Insert a styled div to sit over the top of the hidden select element
$this.after('<div class="styledSelect"></div>');
// Cache the styled div
var $styledSelect = $this.next('div.styledSelect');
// Show the first select option in the styled div
$styledSelect.text($this.children('option').eq(0).text());
// Insert an unordered list after the styled div and also cache the list
var $list = $('<ul />', {
'class': 'options'
}).insertAfter($styledSelect);
// Insert a list item into the unordered list for each select option
for (var i = 0; i < numberOfOptions; i++) {
$('<li />', {
text: $this.children('option').eq(i).text(),
rel: $this.children('option').eq(i).val()
}).appendTo($list);
}
// Cache the list items
var $listItems = $list.children('li');
// Show the unordered list when the styled div is clicked (also hides it if the div is clicked again)
$styledSelect.click(function (e) {
e.stopPropagation();
$('div.styledSelect.active').each(function () {
$(this).removeClass('active').next('ul.options').hide();
});
$(this).toggleClass('active').next('ul.options').toggle();
});
// Hides the unordered list when a list item is clicked and updates the styled div to show the selected list item
// Updates the select element to have the value of the equivalent option
$listItems.click(function (e) {
e.stopPropagation();
$styledSelect.text($(this).text()).removeClass('active');
$this.val($(this).attr('rel'));
$list.hide();
/* alert($this.val()); Uncomment this for demonstration! */
});
// Hides the unordered list when clicking outside of it
$(document).click(function () {
$styledSelect.removeClass('active');
$list.hide();
});
});
答案 4 :(得分:6)
好像我可以直接在Chrome中设置select
的CSS。下面提供了CSS和HTML代码:
.boldoption {
font-weight: bold;
}
&#13;
<select>
<option>Some normal-font option</option>
<option>Another normal-font option</option>
<option class="boldoption">Some bold option</option>
</select>
&#13;
答案 5 :(得分:3)
如前所述,唯一的方法是使用替换<select>
功能的插件。
jQuery插件列表:http://plugins.jquery.com/tag/select/
使用Select2
插件查看示例:http://jsfiddle.net/swsLokfj/23/
答案 6 :(得分:3)
Bootstrap允许您通过数据内容使用样式:
<select class="selectpicker">
<option data-content="<span class='label label-success'>Relish</span>">Relish</option>
</select>
实施例: https://silviomoreto.github.io/bootstrap-select/examples/
答案 7 :(得分:2)
现代浏览器的一些选项:
依赖关系:仅限CSS + HTML ,不需要库或JS。
兼容性:所有支持除IE8以外的浏览器不支持border-radius
,box-shadow
,也不支持transform
。
演示:http://cssdeck.com/labs/styling-select-box-with-css3
请注意,这不仅是选项的样式,也是选择的样式。
body, html {background:#444; text-align:center; padding:50px 0;}
/* The CSS */
select {
padding:3px;
margin: 0;
-webkit-border-radius:4px;
-moz-border-radius:4px;
border-radius:4px;
-webkit-box-shadow: 0 3px 0 #ccc, 0 -1px #fff inset;
-moz-box-shadow: 0 3px 0 #ccc, 0 -1px #fff inset;
box-shadow: 0 3px 0 #ccc, 0 -1px #fff inset;
background: #f8f8f8;
color:#888;
border:none;
outline:none;
display: inline-block;
-webkit-appearance:none;
-moz-appearance:none;
appearance:none;
cursor:pointer;
}
/* Targetting Webkit browsers only. FF will show the dropdown arrow with so much padding. */
@media screen and (-webkit-min-device-pixel-ratio:0) {
select {padding-right:18px}
}
label {position:relative}
label:after {
content:'<>';
font:11px "Consolas", monospace;
color:#aaa;
-webkit-transform:rotate(90deg);
-moz-transform:rotate(90deg);
-ms-transform:rotate(90deg);
transform:rotate(90deg);
right:8px; top:2px;
padding:0 0 2px;
border-bottom:1px solid #ddd;
position:absolute;
pointer-events:none;
}
label:before {
content:'';
right:6px; top:0px;
width:20px; height:20px;
background:#f8f8f8;
position:absolute;
pointer-events:none;
display:block;
}
&#13;
<label>
<select>
<option selected> Select Box </option>
<option>Short Option</option>
<option>This Is A Longer Option</option>
</select>
</label>
&#13;
如果您已经使用过bootstrap,可以尝试 Bootstrap Select库或下面的库(因为它有一个bootstrap主题)。
请注意,您可以分别设置整个select
元素或option
元素的样式。
实施例:
依赖关系:需要 jQuery v1.9.1 +, Bootstrap ,Bootstrap的dropdown.js组件和Bootstrap的CSS
兼容性:不确定,但引导程序说它支持所有主流浏览器和平台的最新,稳定版本&#34;
演示:https://developer.snapappointments.com/bootstrap-select/examples/
.special {
font-weight: bold !important;
color: #fff !important;
background: #bc0000 !important;
text-transform: uppercase;
}
&#13;
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
<link href="https://stackpath.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet" />
<link href="https://cdn.jsdelivr.net/npm/bootstrap-select@1.13.9/dist/css/bootstrap-select.min.css" rel="stylesheet" />
<script src="https://cdn.jsdelivr.net/npm/bootstrap-select@1.13.9/dist/js/bootstrap-select.min.js"></script>
<select class="selectpicker">
<option>Mustard</option>
<option class="special">Ketchup</option>
<option style="background: #5cb85c; color: #fff;">Relish</option>
</select>
&#13;
您可以使用名为 Select2 的库。
依赖关系:库只是JS + CSS + HTML(不需要JQuery)。
兼容性:IE 8 +,Chrome 8 +,Firefox 10 +,Safari 3 +,Opera 10.6 +
演示:https://select2.org/getting-started/basic-usage
还有bootstrap theme可用。
No Bootstrap示例:
$(function() {
var $select = $('.select2');
$select.select2({
theme: 'paper'
});
});
&#13;
<script src="https://cdnjs.cloudflare.com/ajax/libs/select2/4.0.7/js/select2.min.js"></script>
<link href="https://cdnjs.cloudflare.com/ajax/libs/select2/4.0.7/css/select2.min.css" rel="stylesheet"/>
<select class="select2 form-control" placeholder="Country">
<optgroup label="Alaskan/Hawaiian Time Zone">
<option value="AK">Alaska</option>
<option value="HI">Hawaii</option>
</optgroup>
<optgroup label="Pacific Time Zone">
<option value="CA">California</option>
<option value="NV">Nevada</option>
<option value="OR">Oregon</option>
<option value="WA">Washington</option>
</optgroup>
</select>
&#13;
Bootstrap示例:
$(function() {
var $select = $('.select2');
$select.select2({
theme: 'paper'
});
});
&#13;
<link href="https://cdnjs.cloudflare.com/ajax/libs/bootswatch/3.3.2/paper/bootstrap.css" rel="stylesheet"/>
<script src="https://cdnjs.cloudflare.com/ajax/libs/select2/4.0.7/js/select2.min.js"></script>
<link href="https://cdnjs.cloudflare.com/ajax/libs/select2/4.0.7/css/select2.min.css" rel="stylesheet"/>
<select class="select2 form-control" placeholder="Country">
<optgroup label="Alaskan/Hawaiian Time Zone">
<option value="AK">Alaska</option>
<option value="HI">Hawaii</option>
</optgroup>
<optgroup label="Pacific Time Zone">
<option value="CA">California</option>
<option value="NV">Nevada</option>
<option value="OR">Oregon</option>
<option value="WA">Washington</option>
</optgroup>
</select>
&#13;
如果您有额外的钱,可以使用高级图书馆MDBootstrap。 (这是整个UI工具包,所以它不亮)
这允许您使用Material design设置选择和选项元素的样式。
有一个免费版本,但它不允许你使用漂亮的Material设计!
依赖关系: Bootstrap 4 ,JQuery,
兼容性:"supports the latest, stable releases of all major browsers and platforms."
答案 8 :(得分:1)
这是您要寻找的吗?我用jQuery完成的! :D
运行代码段:)
$(".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>
答案 9 :(得分:1)
在这里使用类切换在桌面上留下快速替代方案。行为与选择非常相似,但可以使用过渡,过滤器和颜色设置样式,每个孩子都可以单独设置。
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>
答案 10 :(得分:0)
这是一个用于样式选项和选择标签的 html css 代码。 选择的选项:背景和粗体 关闭后,它看起来是斜体。
<style>
.mydropdown{
border:none;
border-bottom:2px dotted black;
display:inline;max-width:20%;
font-style: italic;
font-weight: 600;
cursor: pointer;
}
.mydropdown:hover , .myoption:active , .myoption:checked{
border:2px dotted green;
}
.myoption{
font-style: normal;
}
.mydropdown .myoption:checked,
.mydropdown .myoption:hover ,
.mydropdown .myoption:active {
font-style: italic;
font-weight: 600;
}
</style>
答案 11 :(得分:0)
即使没有太多要更改的属性,但是您也只能使用CSS实现以下样式:
HTML:
<div class="options">
<select>
<option value="">Apple</option>
<option value="">Banana</option>
<option value="">Orange</option>
<option value="">Mango</option>
</select>
</div>
CSS:
.options {
border: 1px solid #e5e5e5;
padding: 10px;
select {
font-size: 14px;
border: none;
width: 100%;
background: white;
}
}
答案 12 :(得分:0)
绝对可以。
选择选项由 OS 而不是html呈现。这就是CSS样式无效的原因。
option{font-size : value ;
background-color:colorCode;
border-radius:value; }
可以,但是我们无法自定义填充,边距等。
下面的代码100%可以自定义来自this example的选择标记
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>
答案 13 :(得分:0)
此元素由操作系统而不是HTML呈现。不能通过CSS设置样式。
$(function() {
var clicky;
var t=0;
$(document).mousedown(function(e) {
clicky = $(e.target);
});
$(document).mouseup(function(e) {
clicky = null;
});
$("select").focusout(function(e) {
if (typeof clicky.attr('id') !== typeof undefined && clicky.attr('id') !== false) {
$(this).parents().children("span.selected").html(clicky.html());
$(this).children('option[value="'+clicky.attr('id')+'"]').prop('selected', true);
}
$(this).parents().children("span.lists").html('');
});
$('select > option').text(function(i, text) {
var attr = $(this).attr('selected');
if (typeof attr !== typeof undefined && attr !== false) {
$(this).parents().parents().children("span.selected").html(text);
}
});
$("select").focusin(function(){
$(this).children('option').text(function(i, text) {
$(this).parents().children("span.lists").append("<span class='item' id='"+$(this).attr('value')+"'>"+text+"</span>");
});
});
});
select {
width: 0px;
height: 0px;
overflow:hidden;
outline: none;
border: none;
appearance:none;
-moz-appearance: none;
}
label{
display: inline-block;
padding: 5px 10px;
position: relative;
width: 100px;
height: 20px;
background-color:#ccc;
}
label .selected{
display: inline-block;
overflow: hidden;
width: 100%;
height: 100%;
}
label span.lists{
width: 100%;
display: inline-block;
position: absolute;
top: 100%;
left: 0px;
box-shadow: 0px 0px 2px 0px #ccc;
background-color:#fff;
z-index: 9;
}
label span.item{
display: inline-block;
width: 100%;
border-bottom: 1px solid #ccc;
}
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
</head>
<body>
<form action="?" method="GET">
<label><span class="selected">select..</span> <span class="lists"></span>
<select name="test">
<option value="1">Lorem ipsum dolor sit amet, consectetur adipisicing elit.</option>
<option value="2" selected>item 2</option>
<option value="3">item 3</option>
<option value="4">item 4</option>
</select>
</label><br>
<label><span class="selected">select..</span> <span class="lists"></span>
<select name="test2">
<option value="1">Lorem ipsum dolor sit amet, consectetur adipisicing elit.</option>
<option value="2">item 2</option>
<option value="3" selected>item 3</option>
<option value="4">item 4</option>
</select>
</label><br>
<button>Submit</button>
</form>
</body>
</html>
尝试一下可能对您有帮助
[ https://codepen.io/venu9l/pen/jeNXzY][1]
答案 14 :(得分:0)
实际上你可以添加:before和:after并设置样式。至少它是什么
option{
font-size:18px;
background-color:#ffffff;
}
option:before{
content: ">";
font-size:20px;
display:none;
padding-right:10px;
padding-left:5px;
color:#fff;
}
option:hover:before{
display:inline;
}
答案 15 :(得分:0)
2017年,可以定位特定的选择。在我的项目中,我有一个包含 class =&#34; variants&#34; 的表格,而选择选项位于表格单元格中 td =&#34; value&#34; < / strong>,并且select具有ID select#pa_color 。 option元素还有一个类选项=&#34;附加&#34; (以及其他类标记)。 如果用户以批发客户身份登录,他们可以看到所有颜色选项。但零售客户不允许购买2种颜色选项,因此我已禁用它们
<option class="attached" disabled>color 1</option>
<option class="attached" disabled>color 2</option>
这需要一点逻辑,但这是我如何针对禁用的选择选项。
<强> CSS 强>
table.variations td.value select#pa_color option.attached:disabled {
display: none !important;
}
有了这个,我的颜色选项只对批发客户可见。
答案 16 :(得分:-1)
您可以使用内联样式向ENT_NOQUOTES
标签添加自定义样式。
例如:<option>
这只会将样式应用于此特定的<option style="font-weight:bold;color:#09C;">Option 1</option>
元素。
然后,您可以使用一些JavaScript魔术来将内联样式应用于<option>
标记内的所有<option>
元素,如下所示:
<select>
var select = $(document).getElementById('#select-element-id')
var option = select.children('#option-element-id')
option.css('font-weight', 'bold')
您还可以使用option.css('font-size', '24px')
在选项之间添加换行符。
答案 17 :(得分:-1)
您可以添加一个类,并提供font-weight:700;选择。但是通过使用这些,所有文本将变为粗体。
答案 18 :(得分:-3)
如上所述,不太可能;但是,如果您只想在用户与字段交互之前为“选择产品...”选项设置初始状态的样式,则可以执行以下操作 -
以下示例样式(技术上全部)第一个选项red和用户交互后将删除该选项(设置value =“defaultValue”)并删除应用于select的类。除了颜色之外,您还可以应用其他选项,但它们只会在更改后影响字段,而不会影响列表视图。
<强> CSS 强>
.default-value{
color: red;
}
<强>的jQuery 强>
$("select").addClass('default-value');
$("select").bind("focus", function () {
$(this).children('option[value="defaultValue"]').remove();
$(this).removeClass('default-value');
});