[CSS3技术]css3鼠标滑过动画

[tr][td]本实例共有五个鼠标滑过的动画效果，但其实原理都是差不多。第一个是多加了一个空白的标签，来显示那个遮罩的三角形；第二，三，四都是对却是用border来生成的遮罩，至于第五个效果就比较复杂，不过原理都是一样的，实际应用也不需要那么复杂。所以只需把前面四个简单的学会了，第五个就当做欣赏吧，扩大自己的视野，以后举一反三的机会多的是。说到底，transition的动画变换来变换去，都是那么几个属性，关键在于对基本属性的把握及对动画效果的设计，多看点效果积累点，以后也可以做到得心应手。

.view {
 width: 300px;
 height: 200px;
 margin: 10px;
 float: left;
 border: 5px solid #fff;
 overflow: hidden;
 position: relative;
 text-align: center;
 box-shadow: 0px 0px 5px #aaa;
 cursor: default;
}
.view .mask, .view .content {
 width: 300px;
 height: 200px;
 position: absolute;
 overflow: hidden;
 top: 0;
 left: 0;
}
.view img {
 display: block;
 position: relative;
}
.view a.info {
 background:url(../img/link.png) center no-repeat;
 display: inline-block;
 text-decoration: none;
 padding:0;
 text-indent:-9999px;
 width:20px;
 height:20px;
}

/*demo1*/
.effect img {
 opacity:1;
 transform:scale(1,1);
 transition: all 0.2s ease-in;
}
.effect .mask {
 opacity:0;
 overflow:visible;
 border-color:rgba(0,0,0,0.7) transparent transparent transparent;
 border-style:solid;
 border-width:150px;
 width:0;
 height:0;
 transform:translateY(-125px);
 transition: transform 0.2s 0.1s ease-out, opacity 0.3s ease-in-out;
}
.effect a.info {
 opacity:0;
 transform:translateY(-125px);
 transition: transform 0.3s ease-in, opacity 0.1s ease-in-out;
}
.effect:hover img {
 opacity:0.7;
 transform:scale(2,2);
}
.effect:hover .mask {
 opacity: 1;
 transform: translateY(0px);
}
.effect:hover a.info {
 opacity:1;
 transform:translateY(100px);
}
/*demo2*/
.second-effect .mask {
 opacity: 0;
 overflow:visible;
 border:0px solid rgba(0,0,0,0.7);
 box-sizing:border-box;
 transition: all 0.4s ease-in-out;
}
.second-effect a.info {
 position:relative;
 top:-10px;
 opacity:0;
 transform:scale(0,0);
 transition: transform 0.2s 0.1s ease-in, opacity 0.1s ease-in-out;
}
.second-effect:hover .mask {
 opacity: 1;
 border:100px solid rgba(0,0,0,0.7);
}
.second-effect:hover a.info {
 opacity:1;
 transform:scale(1,1);
 transition-delay:0.3s;
}
/*demo3*/
.third-effect .mask {
 opacity: 0;
 overflow:visible;
 border:100px solid rgba(0,0,0,0.7);
 box-sizing:border-box;
 transition: all 0.4s ease-in-out;
}
.third-effect a.info {
 position:relative;
 top:-10px; /* Center the link */
 opacity: 0;
 transition: opacity 0.5s 0s ease-in-out;
}
.third-effect:hover .mask {
 opacity: 1;
 border:100px solid rgba(0,0,0,0.7);
}
.third-effect:hover a.info {
 opacity:1;
 transition-delay: 0.3s;
}
/*demo4*/
.fourth-effect .mask {
 position:absolute; /* Center the mask */
 top:50px;
 left:100px;
 cursor:pointer;
 border-radius: 50px;
 border-width: 50px;
 display: inline-block;
 height: 100px;
 width: 100px;
 border: 50px solid rgba(0, 0, 0, 0.7);
 box-sizing:border-box;
 opacity:1;
 visibility:visible;
 transform:scale(4);
 transition:all 0.3s ease-in-out;
}
.fourth-effect:hover .mask {
 opacity: 0;
 border:0px solid rgba(0,0,0,0.7);
 visibility:hidden;
}
/*demo5*/
.fifth-effect img {
 opacity:0.2;
 transition: all 0.3s ease-in;
}
.fifth-effect .mask {
 cursor:pointer;
 opacity:1;
 visibility:visible;
 border:100px solid rgba(0,0,0,0.7);
 box-sizing:border-box;
 transition: all 0.4s cubic-bezier(0.940, 0.850, 0.100, 0.620);
}
.fifth-effect:hover .mask {
 border:0px double rgba(0,0,0,0.7);
 opacity:0;
 visibility:hidden;
}
.fifth-effect:hover img {
 opacity:1;
}

演示：http://www.alessioatzeni.com/wp-content/tutorials/html-css/CSS3-Hover-Effects/index.html


下载：CSS3-Hover-Effects.zip




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