首先是构思:
我们使用<input type="checkbox">标签来实现这个效果。
checkbox的选中、未选中的特性,刚好对应开关的打开、关闭
on:打开 off:关闭
<label for="ck2"> <input type="checkbox" id="ck2"> <span>未选中,则关闭开关</span> </label> <br> <label for="ck1"> <input type="checkbox" id="ck1" checked> <span>选中,则打开开关</span> </label>
效果:
(推荐教程:CSS入门教程)
开始画出off、on状态的草图
这里要讲解一下,使用了position来实现的定位。有不了解的同学可以打开MDN查看相关知识
<P>off状态草图</P> <div class="toggle"> <div class="cookie"></div> </div> <br> <P>on状态草图</P> <div class="toggle2"> <div class="cookie2"></div> </div> .toggle{ display:inline-block; position:relative; height:25px; width:50px; border-radius:4px; background:#CC0000; } .cookie{ position:absolute; left:2px; top:2px; bottom:2px; width:50%; background:rgba(230,230,230,0.9); border-radius:3px; } .toggle2{ display:inline-block; position:relative; height:25px; width:50px; padding:2px; border-radius:4px; background:#66CC33; } .cookie2{ position:absolute; right:2px; top:2px; bottom:2px; width:50%; background:rgba(230,230,230,0.9); border-radius:3px; }
效果:
然后我们将这两个草图放到label内
<label for="ck4"> <input type="checkbox" id="ck4"> <div class="toggle"> <div class="cookie"></div> </div> </label> <br> <label for="ck3"> <input type="checkbox" id="ck3" checked> <div class="toggle2"> <div class="cookie2"></div> </div> </label>
效果:
结合label和checkbox整理、优化css
<label for="ck5"> <input type="checkbox" id="ck5"> <div class="toggle-finish"> <div class="cookie-finish"></div> </div> </label> <br> <label for="ck6"> <input type="checkbox" id="ck6" checked> <div class="toggle-finish"> <div class="cookie-finish"></div> </div> </label> .toggle-finish{ cursor:pointer; display:inline-block; position:relative; height:25px; width:50px; border-radius:4px; background:#CC0000; } .cookie-finish{ position:absolute; left:2px; top:2px; bottom:2px; width:50%; background:rgba(230,230,230,0.9); border-radius:3px; } input:checked + .toggle-finish{ background:#66CC33; } input:checked + .toggle-finish .cookie-finish{ left:auto; right:2px; }
效果:
到此为止就已经基本实现一个开关的功能了,记得将input隐藏起来哦。
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