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<head><meta charset="UTF-8"><title>纯 CSS 开关切换按钮</title><style>html {font-size: 62.5%;}body {background-color: #1848a0;}.wrapper {position: absolute;left: 50%;top: 50%;transform: translate(-50%, -50%);}.toggler {animation: showToggler 300ms ease-out;cursor: pointer;height: 25px;margin: 10px 0;}.toggler .choices {transition: background-color 300ms ease-out;cursor: pointer;position: relative;display: block;width: 100%;height: 25px;
