1.<!DOCTYPE html>
<html>
<head>
<style type="text/css">
/* Customize the label (the container) */
.container {
display: block;
position: relative;
padding-left: 35px;
margin-bottom: 12px;
cursor: pointer;
font-size: 22px;
-webkit-user-select: none;
-moz-user-select: none;
-ms-user-select: none;
user-select: none;
}
/* Hide the browser's default checkbox */
.container input {
position: absolute;
opacity: 0;
cursor: pointer;
height: 0;
width: 0;
}
/* Create a custom checkbox */
.checkmark {
position: absolute;
top: 0;
left: 0;
height: 25px;
width: 25px;
background-color: #eee;
}
/* On mouse-over, add a grey background color */
.container:hover input ~ .checkmark {
background-color: #ccc;
}
/* When the checkbox is checked, add a blue background */
.container input:checked ~ .checkmark {
background-color: #2196F3;
}
/* Create the checkmark/indicator (hidden when not checked) */
.checkmark:after {
content: "";
position: absolute;
display: none;
}
/* Show the checkmark when checked */
.container input:checked ~ .checkmark:after {
display: block;
}
/* Style the checkmark/indicator */
.container .checkmark:after {
left: 9px;
top: 5px;
width: 5px;
height: 10px;
border: solid white;
border-width: 0 3px 3px 0;
-webkit-transform: rotate(45deg);
-ms-transform: rotate(45deg);
transform: rotate(45deg);
}
</style>
<meta charset="utf-8">
<title></title>
</head>
<body>
<form>
<label class="container">One
<input type="checkbox" checked="checked" name="one" value="one"/>
<span class="checkmark"></span>
</label>
<label class="container">Two
<input type="checkbox" name="two" value="two" checked="checked"/>
<span class="checkmark"></span>
</label>
<label class="container">Three
<input type="checkbox" name="three" value="three"/>
<span class="checkmark"></span>
</label>
<label class="container">Four
<input type="checkbox" name="four" value="four"/>
<span class="checkmark"></span>
</label>
<button type="submit">提交</button>
</form>
</body>
</html>
