超炫酷3D立體的CSS3彈性按鈕

本文由碼農網 – 小峰原創，轉載請看清文末的轉載要求，歡迎參與我們的付費投稿計劃！

這又是一款非常棒的純CSS3按鈕動畫，這款CSS3按鈕的特點是具有3D立體的視覺效果，而且按鈕具有彈性，點選按鈕的時候很有質感。尤其是在背景的襯托下，按鈕更顯晶瑩剔透，立體感更加強烈。這款按鈕的另一個特點是完全用CSS3實現動畫效果，並且原理也簡單，僅僅是利用了CSS3對checkbox的重新渲染。

線上演示原始碼下載

HTML程式碼：

<div class="container">
	<div class="toggle">
		<input type="checkbox">
		<span class="button"></span>
		<span class="label">+</span>
	</div>
	<div class="toggle">
		<input type="checkbox" checked>
		<span class="button"></span>
		<span class="label">–</span>
	</div>
</div>

CSS程式碼

.container {
  text-align: center;
  position: absolute;
  margin-top: -80px;
  width: 100%;
  top: 50%;
}

.toggle {
  margin: 4px;
  display: inline-block;
}

.toggle {
  box-shadow: inset 0 0 35px 5px rgba(0, 0, 0, 0.25), inset 0 2px 1px 1px rgba(255, 255, 255, 0.9), inset 0 -2px 1px 0 rgba(0, 0, 0, 0.25);
  border-radius: 8px;
  background: #ccd0d4;
  position: relative;
  height: 140px;
  width: 140px;
}
.toggle:before {
  box-shadow: 0 0 17.5px 8.75px white;
  border-radius: 118.3px;
  background: white;
  position: absolute;
  margin-left: -50.4px;
  margin-top: -50.4px;
  opacity: 0.2;
  content: "";
  height: 100.8px;
  width: 100.8px;
  left: 50%;
  top: 50%;
}
.toggle .button {
  -webkit-filter: blur(1px);
  -moz-filter: blur(1px);
  filter: blur(1px);
  transition: all 300ms cubic-bezier(0.23, 1, 0.32, 1);
  box-shadow: 0 15px 25px -4px rgba(0, 0, 0, 0.5), inset 0 -3px 4px -1px rgba(0, 0, 0, 0.2), 0 -10px 15px -1px rgba(255, 255, 255, 0.6), inset 0 3px 4px -1px rgba(255, 255, 255, 0.2), inset 0 0 5px 1px rgba(255, 255, 255, 0.8), inset 0 20px 30px 0 rgba(255, 255, 255, 0.2);
  border-radius: 96.32px;
  position: absolute;
  background: #ccd0d4;
  margin-left: -48.16px;
  margin-top: -48.16px;
  display: block;
  height: 96.32px;
  width: 96.32px;
  left: 50%;
  top: 50%;
}
.toggle .label {
  transition: color 300ms ease-out;
  text-shadow: 1px 1px 3px #ccd0d4, 0 0 0 rgba(0, 0, 0, 0.8), 1px 1px 4px white;
  line-height: 139px;
  text-align: center;
  position: absolute;
  font-weight: 700;
  font-size: 42px;
  display: block;
  opacity: 0.9;
  height: 100%;
  width: 100%;
  color: rgba(0, 0, 0, 0.4);
}
.toggle input {
  opacity: 0;
  position: absolute;
  cursor: pointer;
  z-index: 1;
  height: 100%;
  width: 100%;
  left: 0;
  top: 0;
}
.toggle input:active ~ .button {
  box-shadow: 0 15px 25px -4px rgba(0, 0, 0, 0.4), inset 0 -8px 30px 1px rgba(255, 255, 255, 0.9), 0 -10px 15px -1px rgba(255, 255, 255, 0.6), inset 0 8px 25px 0 rgba(0, 0, 0, 0.4), inset 0 0 10px 1px rgba(255, 255, 255, 0.6);
}
.toggle input:active ~ .label {
  font-size: 40px;
  color: rgba(0, 0, 0, 0.45);
}
.toggle input:checked ~ .button {
  box-shadow: 0 15px 25px -4px rgba(0, 0, 0, 0.4), inset 0 -8px 25px -1px rgba(255, 255, 255, 0.9), 0 -10px 15px -1px rgba(255, 255, 255, 0.6), inset 0 8px 20px 0 rgba(0, 0, 0, 0.2), inset 0 0 5px 1px rgba(255, 255, 255, 0.6);
}
.toggle input:checked ~ .label {
  font-size: 40px;
  color: rgba(0, 0, 0, 0.4);
}

線上演示原始碼下載