3D導航標籤

一、知識準備

css3屬性：

perspective

transition

transform

transform-style

backface-visibility

transform-origin

更多

二、開始動手

首先創建一個HTML結構，如下所示：

<div class="main">
	<ul class="nav-menu">
		<li><a href="#" class="three-d">技術研討<span class="three-d-box">

                    <span class="front">技術研討</span>

                    <span class="back">技術研討</span></span>
		/a></li>
	</ul>
</div>

接下來更改基本的樣式，先將<li>標籤基本樣式去掉，同時使<a>能自定義寬度、高度。

.nav-menu > li {
	display: inline;
	float: left;
}
.nav-menu li a {
	color: #fff;
	display: block;
	text-decoration: none;
	/*font-smoothing:使字體變清晰*/
	-webkit-font-smoothing: antialiased;
	-moz-font-smoothing: antialiased;
	font-smoothing: antialiased;
	line-height: 20px;
	/*line-height：使字垂直居中*/
	font-size: 20px;
	padding: 15px 30px 15px 31px;
}

將下來我們就要創建3D效果了，選項就激動呢\(≧▽≦)/

平時瀏覽器渲染都是2D的，如果要程序3D效果，肯定要先創建一個3D舞臺佈景，讓它在上面動起來

.three-d {

	/* 設置3D舞臺佈景 */
	/*perspective 屬性定義 3D 元素距視圖的距離，越大越遠*/
	-webkit-perspective: 200px;
	-moz-perspective: 200px;
	-ms-perspective: 200px;
	-o-perspective: 200px;
	perspective: 200px;			  /*設置3D舞臺佈景過渡效果*/
	-webkit-transition: all .07s linear;
	-moz-transition: all .07s linear;
	-ms-transition: all .07s linear;
	-o-transition: all .07s linear;
	transition: all .07s linear;
	position: relative;
}

有了舞臺之後，表演什麼呢？這就需要我們給它編排了\(^o^)/~

/*設置3D前，與3D後變形效果*/
.front {
	-webkit-transform: rotatex(0deg) translatez(25px);
	-moz-transform: rotatex(0deg) translatez(25px);
	-ms-transform: rotatex(0deg) translatez(25px);
	-o-transform: rotatex(0deg) translatez(25px);
	transform: rotatex(0deg) translatez(25px);
}
.back {
	-webkit-transform: rotatex(-90deg) translatez(25px);
	-moz-transform: rotatex(-90deg) translatez(25px);
	-ms-transform: rotatex(-90deg) translatez(25px);
	-o-transform: rotatex(-90deg) translatez(25px);
	transform: rotatex(-90deg) translatez(25px);
	color: #FFE7C4;
}
.front, .back {
	display: block;
	width: 100%;
	height: 100%;
	position: absolute;
	top: 0;
	left: 0;
	padding: 15px 30px 15px 31px;
	color: white;
	-webkit-pointer-events: none;
	-moz-pointer-events: none;
	-ms-pointer-events: none;
	-o-pointer-events: none;
	pointer-events: none;
	-webkit-box-sizing: border-box;
	box-sizing: border-box;
	background: -webkit-linear-gradient(rgb(63, 184, 211), rgb(25, 137, 185), rgb(6, 91, 158));
	background: -o-linear-gradient(rgb(63, 184, 211), rgb(25, 137, 185), rgb(6, 91, 158));
	background: -moz-linear-gradient(rgb(63, 184, 211), rgb(25, 137, 185), rgb(6, 91, 158));
	background: linear-gradient(rgb(63, 184, 211), rgb(25, 137, 185), rgb(6, 91, 158));
	filter: alpha(opacity=80);
}

舞臺準備好了，舞蹈也編排好了，但是好像還是缺了點什麼？(⊙v⊙)嗯，對了，沒有Music怎麼行呢，有音樂才能跟着節拍起舞啊...

.three-d-box {

	/*給3D舞臺中“.three-d-box”設置過渡與變形效果*/
	-webkit-transition: all .3s ease-out;
	-moz-transition: all .3s ease-out;
	-ms-transition: all .3s ease-out;
	-o-transition: all .3s ease-out;
	transition: all .3s ease-out;
	-webkit-transform: translatez(-25px);
	-moz-transform: translatez(-25px);
	-ms-transform: translatez(-25px);
	-o-transform: translatez(-25px);
	transform: translatez(-25px);
	-webkit-transform-style: preserve-3d;
	-moz-transform-style: preserve-3d;
	-ms-transform-style: preserve-3d;
	-o-transform-style: preserve-3d;
	transform-style: preserve-3d;
	-webkit-pointer-events: none;
	-moz-pointer-events: none;
	-ms-pointer-events: none;
	-o-pointer-events: none;
	pointer-events: none;
	position: absolute;
	top: 0;
	left: 0;
	display: block;
	width: 100%;
	height: 100%;
}

更多參考：

http://codepen.io/ClayLing/pen/NpjxBg