css3 animation 学习

 

css3中可以实现动画效果,主要是通过css3中新增加的属性(transform , transition,animation )来完成。

 

他们的详细解释可以参考 W3CSCHOOL

 

下面是效果图:



 

 

类似于tab选项卡,当点击某个input的时候,就以动画的效果来显示对应的内容区域。

 

<html lang="zh" >
<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0"> 

<style>
	
body{
	overflow: hidden;
}

.st-container {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    font-family: Arial, sans-serif;
}

/*put the “navigation” at the top of the page by giving it a fixed position*/

.st-container > input,
.st-container > a {
    position: fixed;
    top: 0;
    width: 20%;
    cursor: pointer;
    font-size: 16px;
    height: 34px;
    line-height: 34px;
}
 
.st-container > input {
    opacity: 0;
    z-index: 1000;
}
 
.st-container > a {
    z-index: 10;
    font-weight: 700;
    background: #e23a6e;
    color: #fff;
    text-align: center;
    text-shadow: 1px 1px 1px rgba(151,24,64,0.2);
	text-decoration: none;
}

/*It will have the same background color like the link elements:*/
.st-container:after {
    content: '';
    position: fixed;
    width: 100%;
    height: 34px;
    background: #e23a6e;
    z-index: 9;
    top: 0;
}

/*give input and links  respective left values*/
#st-control-1, #st-control-1 + a {
    left: 0;
}
 
#st-control-2, #st-control-2 + a {
    left: 20%;
}
 
#st-control-3, #st-control-3 + a {
    left: 40%;
}
 
#st-control-4, #st-control-4 + a {
    left: 60%;
}
 
#st-control-5, #st-control-5 + a {
    left: 80%;
}

/*define a “selected” state for the link elements.*/
.st-container > input:checked + a,
.st-container > input:checked:hover + a{
    background: #821134;
}

/*add a little triangle using the pseudo-class :after and give it the same color:*/

.st-container > input:checked + a:after,
.st-container > input:checked:hover + a:after{
    top: 100%;
    border: solid transparent;
    content: '';
    height: 0;
    width: 0;
    position: absolute;
    pointer-events: none;
    border-top-color: #821134;
    border-width: 20px;
    left: 50%;
    margin-left: -20px;
}

/*define a hover state for the link element:*/
.st-container > input:hover + a{
    background: #AD244F;
}
 
.st-container > input:hover + a:after {
    border-bottom-color: #AD244F;
}

/*define scroll panel style*/

.st-scroll,
.st-panel {
    position: relative;
    width: 100%;
    height: 100%;
}
 
.st-scroll {
    top: 0;
    left: 0;
    -webkit-transition: all 0.6s ease-in-out;
     
    /* Let's enforce some hardware acceleration */
    -webkit-transform: translate3d(0, 0, 0);
    -webkit-backface-visibility: hidden;
	border: solid 1px #ccc;
}
 
.st-panel{
    background: #fff;
    overflow: hidden;
} 

/**define the positions for the st-scroll wrapper for each checked radio button*/

#st-control-1:checked ~ .st-scroll {
    -webkit-transform: translateY(0%);
	background-color: green;
}
#st-control-2:checked ~ .st-scroll {
    -webkit-transform: translateY(-100%);
	background-color: green;
}
#st-control-3:checked ~ .st-scroll {
    -webkit-transform: translateY(-200%);
	background-color: green;
}
#st-control-4:checked ~ .st-scroll {
    -webkit-transform: translateY(-300%);
	background-color: green;
}
#st-control-5:checked ~ .st-scroll {
    -webkit-transform: translateY(-400%);
	background-color: green;
}

#st-control-1:checked ~ .st-scroll #st-panel-1 h2,
#st-control-2:checked ~ .st-scroll #st-panel-2 h2,
#st-control-3:checked ~ .st-scroll #st-panel-3 h2,
#st-control-4:checked ~ .st-scroll #st-panel-4 h2,
#st-control-5:checked ~ .st-scroll #st-panel-5 h2{
    -webkit-animation: moveDown 1.6s ease-in-out 1.2s backwards;
}

/** define animation for the scroll panel*/ 
@keyframes moveDown{
    0% { 
        -webkit-transform: translateY(-40px); 
        opacity: 0;
    }
    100% { 
        -webkit-transform: translateY(0px);  
        opacity: 1;
    }
}

.st-panel h2 {
    color: #e23a6e;
    text-shadow: 1px 1px 1px rgba(151,24,64,0.2);
    position: absolute;
    font-size: 54px;
    font-weight: 900;
    width: 80%;
    left: 10%;
    text-align: center;
    line-height: 50px;
    margin: -70px 0 0 0;
    padding: 0;
    top: 50%;
    -webkit-backface-visibility: hidden;
}

.st-panel p {
    position: absolute;
    text-align: center;
    font-size: 16px;
    line-height: 22px;
    color: #8b8b8b;
    z-index: 2;
    padding: 0;
    width: 50%;
    left: 25%;
    top: 50%;
    margin: 10px 0 0 0;
    -webkit-backface-visibility: hidden;
}

</style>
<body>
        <div class="container">
		
			<div class="st-container">
			
				<input type="radio" name="radio-set" checked="checked" id="st-control-1">
				<a href="#st-panel-1">Serendipity</a>
				<input type="radio" name="radio-set" id="st-control-2">
				<a href="#st-panel-2">Happiness</a>
				<input type="radio" name="radio-set" id="st-control-3">
				<a href="#st-panel-3">Tranquillity</a>
				<input type="radio" name="radio-set" id="st-control-4">
				<a href="#st-panel-4">Positivity</a>
				<input type="radio" name="radio-set" id="st-control-5">
				<a href="#st-panel-5">Passion</a>
				
				<div class="st-scroll">
				
					<!-- Placeholder text from http://hipsteripsum.me/ -->
					
					<section class="st-panel" id="st-panel-1">
						<h2>Serendipity</h2>
						<p>Banksy adipisicing eiusmod banh mi sed. Squid stumptown est odd future nisi, commodo mlkshk pop-up adipisicing retro.</p>
					</section>
					
					<section class="st-panel st-color" id="st-panel-2">
						<h2>Happiness</h2>
						<p>Art party readymade beard labore cosby sweater culpa. Art party whatever incididunt, scenester umami polaroid tofu.</p>
					</section>
					
					<section class="st-panel" id="st-panel-3">
						<h2>Tranquillity</h2>
						<p>Sint aute occaecat id vice. Post-ironic fap pork belly next level godard, id fanny pack williamsburg forage truffaut.</p>
					</section>
					
					<section class="st-panel st-color" id="st-panel-4">
						<h2>Positivity</h2>
						<p>Mixtape fap leggings art party, butcher authentic farm-to-table you probably haven't heard of them do labore cosby sweater.</p>
					</section>
					
					<section class="st-panel" id="st-panel-5">
						<h2>Passion</h2>
						<p>Fixie ad odd future polaroid dreamcatcher, nesciunt carles bicycle rights accusamus mcsweeney's mumblecore nulla irony.</p>
					</section>

				</div><!-- // st-scroll -->
				
			</div><!-- // st-container -->
			
        </div>
</body>
</html>

 

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