单击时如何更改按钮的背景颜色?

How can I change the background color of a button when clicked?

我研究了很多,发现 this JSFiddle 看起来像我需要的,但是,当我单击按钮时,页面 背景正在改变。我希望 按钮的 颜色在单击时更改。

div{
    width: 100%;
    height: 100%;
    background: #5CB85C;
    position: absolute;
    top: 0;
    left: 0;
    z-index:1;
}
label.btn {
    position: absolute;
    top:10px;
    left: 10px;
    z-index:2;
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    -khtml-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}
input[type="checkbox"]{
    display: none;
}
input[type="checkbox"]:checked + div{
    background: #5BC0DE;
}
label + input[type="checkbox"]:checked{
    background: #000;
}
<link href="http://netdna.bootstrapcdn.com/twitter-bootstrap/2.3.2/css/bootstrap-combined.min.css" rel="stylesheet"/>
<label for="check" class="btn btn-default">Toggle background colour</label>
<input type="checkbox" id="check" />
<div></div>

这很简单。只需将 "button" label 元素移动到 复选框后 ,这样您就可以 select 它与 + select或(这称为 adjacent sibling selector; there is no previous sibling selector, unfortunately), and change the CSS to match. JSFiddle

div{
    width: 100%;
    height: 100%;
    background: #5CB85C;
    position: absolute;
    top: 0;
    left: 0;
    z-index:1;
}
.btn {
    position: absolute;
    top:10px;
    left: 10px;
    z-index:2;
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    -khtml-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}
input[type="checkbox"]{
    display: none;
}
input[type="checkbox"]:checked + .btn {
    background: #5BC0DE;
}
/* label + input[type="checkbox"]:checked{
    background: #000;
} */ /* I've commented this last selector out as it is unused per Harry's point in the comments */
<link href="http://netdna.bootstrapcdn.com/twitter-bootstrap/2.3.2/css/bootstrap-combined.min.css" rel="stylesheet"/>
<input type="checkbox" id="check" />
<label for="check" class="btn btn-default">Toggle background color</label>
<div></div>

要实现您想要的效果,请在 css 中单击按钮时使用 background-color

":active" 属性用于显示点击事件样式...

HTML:

<input type='button' class='btn' value='test'/>

CSS:

.btn {
    background-color:#00ff00;
}

.btn:active {
    background-color:#ff00ff;
}

TEST

在css中你不能后退你应该像下面这样前进。
输入框后面需要加label。

+ 是给下一个兄弟姐妹的。没有 "previous sibling" 选择器。

div{
    width: 100%;
    height: 100%;
    background: #5CB85C;
    position: absolute;
    top: 0;
    left: 0;
    z-index:1;
}
label.btn {
    position: absolute;
    top:10px;
    left: 10px;
    z-index:2;
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    -khtml-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}
input[type="checkbox"]{
    display: none;
}
input[type="checkbox"]:checked + label{
    background: #5BC0DE;
}
label + input[type="checkbox"]:checked{
    background: #000;
}
<link href="http://netdna.bootstrapcdn.com/twitter-bootstrap/2.3.2/css/bootstrap-combined.min.css" rel="stylesheet"/>
<input type="checkbox" id="check" />
<label for="check" class="btn btn-default">Toggle background colour</label>
<div></div>

勾选Updated Fiddle

尝试使用 css 伪代码:

#check {
  display: none;
}
#check + label.btn {
  cursor: pointer;
  border: 1px solid grey;
  padding: 6px 8px;
  background: ghostwhite;
  border-radius: 7px;
  box-shadow: 0px 1px 1px;
}
#check:checked + label.btn {
  background: wheat;
}
#check + label.btn:hover {
  box-shadow: 0px 3px 2px;
}
#check + label.btn:active {
  box-shadow: 0px 1px 1px inset;
}
<input type="checkbox" id="check" />
<label for="check" class="btn">Toggle background colour</label>

.nl [type=checkbox]:checked + span {
  background: #222222;
  background-repeat: no-repeat;
}
.nl label span {
  height: 18px;
  width: 18px;
  float: left;
  margin-right: 9px;
  border: 1px solid #d5d5d5;
  display: inline-block;
    background-color: #ff0000;
}
input[type="checkbox"], .checkbox-inline input[type="checkbox"] {
  position: absolute;
  margin-top: 4px ;
  margin-left: -20px;
}
.nl label input {
  display: none;
}
<div class="checkbox nl">
            <label><input type="checkbox" class="checkboxx" name="rememberme" id="rememberme" value="1" checked="checkced"> Remember me<span></span></label>
   <input type="hidden" name="action" value="login">
</div>

改变

input[type="checkbox"]:checked + div{
    background: #5BC0DE;
}

input[type="checkbox"]:checked + .btn {
    background: #5BC0DE;
}