今天给大家分享一款纯css3实现的数字统计游戏。这款游戏的规则的是将所有的数字相加等于72。这款游戏的数字按钮做得很美观，需要的时候可以借用下。一起看下效果图：
实现的代码。
html代码:
<h1>
CSS Counter Game</h1>
<section>
<h2>
Pick the numbers that add up to 72:</h1>
<input id="a" type="checkbox"><label for="a">64</label>
<input id="b" type="checkbox"><label for="b">16</label>
<input id="c" type="checkbox"><label for="c">-32</label>
<input id="d" type="checkbox"><label for="d">128</label>
<input id="e" type="checkbox"><label for="e">4</label>
<input id="f" type="checkbox"><label for="f">-8</label>
<span class="sum"></span>
</section>
css3代码：
body
{
counter-reset: sum;
} #a:checked
{
counter-increment: sum 64;
}
#b:checked
{
counter-increment: sum 16;
}
#c:checked
{
counter-increment: sum -32;
}
#d:checked
{
counter-increment: sum 128;
}
#e:checked
{
counter-increment: sum 4;
}
#f:checked
{
counter-increment: sum -8;
} .sum::before
{
content: '= ' counter(sum);
} /* the rest is just to make things pretty */ body
{
margin: 32px;
font: 700 32px/1 'Droid Sans' , sans-serif;
color: #fff;
background-color: #583f3f;
} h1
{
margin: 0 0 32px;
font-size: 48px;
} h2
{
margin: 0 0 8px 8px;
font-size: inherit;
} section
{
margin-bottom: 16px;
padding: 16px;
border-radius: 4px;
overflow: hidden;
background-color: rgba(255, 255, 255, .1);
} input
{
position: absolute;
left: -9999px;
} label
{
float: left;
margin: 8px;
padding: 16px;
border-radius: 4px;
border: solid 2px rgba(255, 255, 255, .4);
background-color: rgba(255, 255, 255, .2);
cursor: pointer;
transition: all .1s;
} label::before
{
display: inline;
} input:checked + label
{
border: solid 2px #fff;
background-color: rgba(255, 255, 255, .4);
box-shadow: 0 0 10px #fff;
} span
{
float: left;
margin: 8px;
padding: 18px;
border-radius: 4px;
background-color: rgba(0, 0, 0, .1);
} #a:checked ~ #b:checked ~ #c:not(:checked) ~ #d:not(:checked) ~ #e:not(:checked) ~ #f:checked ~ .sum::after
{
content: ' (hooray!)';
}
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