删除mousedown上的复选框突出显示

Question

在标签上用鼠标按下后,复选框将突出显示.我想删除这个效果.到目前为止,我尝试preventDefault()了偶数onMouseDown事件,但它不会影响突出显示.

(上部复选框突出显示/更暗 - 对标签上的mousedown事件产生影响)

除了在点击标签后没有突出显示复选框的开/关行为应保持不受影响.

额外信息:我无法通过修改复选框的样式来实现它,因为下一步我想要仅对标签的一部分使用无突出显示行为(标签内部的链接特别).

JSFiddle展示了这个问题:http://jsfiddle.net/o59udsLk/1/

Answer 1

您无法控制复选框对mousedown标签的影响,因为这是OS生成的效果.为此,您需要使用CSS样式和字体(可能)更改复选框的外观.

自定义CSS复选框:

body {
	background: #e6e6e6;
}

h1 {
    margin-top: 0;
}

.control-group {
	display: inline-block;
	width: 200px;
	height: 210px;
	margin: 10px;
	padding: 30px;
	text-align: left;
	vertical-align: top;
	background: #fff;
	box-shadow: 0 1px 2px rgba(0,0,0,.1);
}

.control {
	font-size: 18px;
	position: relative;
	display: block;
	margin-bottom: 15px;
	padding-left: 30px;
	cursor: pointer;
}

.control input {
	position: absolute;
	z-index: -1;
	opacity: 0;
}

.control__indicator {
	position: absolute;
	top: 2px;
	left: 0;
	width: 20px;
	height: 20px;
	background: #e6e6e6;
}

/* Hover and focus states */
.control input:focus ~ .control__indicator {
	background: #ccc;
}

/* Checked state */
.control input:checked ~ .control__indicator,
.control input:checked ~ .control__indicator:hover {
	background: #2aa1c0;
}

/* Disabled state */
.control input:disabled ~ .control__indicator {
	pointer-events: none;
	opacity: .6;
	background: #e6e6e6;
}

/* Check mark */
.control__indicator:after {
	position: absolute;
	display: none;
	content: '';
}

/* Show check mark */
.control input:checked ~ .control__indicator:after {
	display: block;
}

/* Checkbox tick */
.control--checkbox .control__indicator:after {
	top: 4px;
	left: 8px;
	width: 3px;
	height: 8px;
	transform: rotate(45deg);
	border: solid #fff;
	border-width: 0 2px 2px 0;
}

/* Disabled tick colour */
.control--checkbox input:disabled ~ .control__indicator:after {
	border-color: #7b7b7b;
}

<div class="control-group">
	<h1>Checkboxes</h1>
	<label class="control control--checkbox">First checkbox
		<input type="checkbox" checked="checked"/>
		<div class="control__indicator"></div>
	</label>
	<label class="control control--checkbox">Second checkbox
		<input type="checkbox"/>
		<div class="control__indicator"></div>
	</label>
	<label class="control control--checkbox">Disabled
		<input type="checkbox" disabled="disabled"/>
		<div class="control__indicator"></div>
	</label>
	<label class="control control--checkbox">Disabled & checked
		<input type="checkbox" disabled="disabled" checked="checked"/>
		<div class="control__indicator"></div>
	</label>
</div>

希望这可以帮助!