css---switch开关

html：

<label><input class="mui-switch" type="checkbox"> 默认未选中</label>
<label><input class="mui-switch" type="checkbox" checked> 默认选中</label>
<label><input class="mui-switch mui-switch-animbg" type="checkbox"> 默认未选中,简单的背景过渡效果,加mui-switch-animbg类即可</label>
<label><input class="mui-switch mui-switch-animbg" type="checkbox" checked> 默认选中</label>
<label><input class="mui-switch mui-switch-anim" type="checkbox"> 默认未选中，过渡效果，加 mui-switch-anim
类即可</label>
<label><input class="mui-switch mui-switch-anim" type="checkbox" checked> 默认选中</label>

css：

.mui-switch {
  width: 52px;
  height: 31px;
  position: relative;
  border: 1px solid #dfdfdf;
  background-color: #fdfdfd;
  box-shadow: #dfdfdf 0 0 0 0 inset;
  border-radius: 20px;
  border-top-left-radius: 20px;
  border-top-right-radius: 20px;
  border-bottom-left-radius: 20px;
  border-bottom-right-radius: 20px;
  background-clip: content-box;
  display: inline-block;
  -webkit-appearance: none;
  user-select: none;
  outline: none; }
  .mui-switch:before {
    content: '';
    width: 29px;
    height: 29px;
    position: absolute;
    top: 0px;
    left: 0;
    border-radius: 20px;
    border-top-left-radius: 20px;
    border-top-right-radius: 20px;
    border-bottom-left-radius: 20px;
    border-bottom-right-radius: 20px;
    background-color: #fff;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.4); }
  .mui-switch:checked {
    border-color: #64bd63;
    box-shadow: #64bd63 0 0 0 16px inset;
    background-color: #64bd63; }
    .mui-switch:checked:before {
      left: 21px; }
  .mui-switch.mui-switch-animbg {
    transition: background-color ease 0.4s; }
    .mui-switch.mui-switch-animbg:before {
      transition: left 0.3s; }
    .mui-switch.mui-switch-animbg:checked {
      box-shadow: #dfdfdf 0 0 0 0 inset;
      background-color: #64bd63;
      transition: border-color 0.4s, background-color ease 0.4s; }
      .mui-switch.mui-switch-animbg:checked:before {
        transition: left 0.3s; }
  .mui-switch.mui-switch-anim {
    transition: border cubic-bezier(0, 0, 0, 1) 0.4s, box-shadow cubic-bezier(0, 0, 0, 1) 0.4s; }
    .mui-switch.mui-switch-anim:before {
      transition: left 0.3s; }
    .mui-switch.mui-switch-anim:checked {
      box-shadow: #64bd63 0 0 0 16px inset;
      background-color: #64bd63;
      transition: border ease 0.4s, box-shadow ease 0.4s, background-color ease 1.2s; }
      .mui-switch.mui-switch-anim:checked:before {
        transition: left 0.3s; }

 原文路径：http://www.css88.com/archives/5693