页面布局□□中的模块□□内容有不□□□少是带有□□□□按钮的，譬如是了□□□□解更多的□□按钮、表单提交▲的按钮等。按钮有引★导用户点□□□□击、激发用户□□□□点击行为□□□□等的作用，例如下单※购买商品□□或者跳转□□□链接或者□□□□展开更多□□□□内容以达·到了解更·多的详情□□的目的。与页面风◇格协调的◉按钮设计◢可以增加□□页面的美❖观效果和□□□更易于吸·引客户的□□□□注意力，为了提高丨用户对关◈于页面操□□作的体验□□度，还可以在□□按钮的制□□□□作中加入☆一些动态□□效果。例如，当鼠标经□□□□过按钮的□□时候，可以适当□□添加一些□□动态效果□□或者加入丨背景的填◎充，下面是可□□□□以在日常▲工作中需□□□□要用css3制作鼠标△经过页面□□□□按钮能用□□□□到的动画□□□□效果。
如下图按钮效果一，鼠标经过会有微微下陷的效果：

Html:
<div class="btn">
<a href="">
<span>了解更多</span>
</a>
</div>
CSS:
.i-title .btn{
text-align: center;
margin-top: 50px;
}
.i-title .btn a{
background: none;
    border: none;
    display: inline-block;
    text-align: center;
    font-size: 14px;
    color: #FFFFFF;
    position: relative;
    padding: 17px 35px;
    overflow: hidden;
    font-weight: 400;
    cursor: pointer;
    -moz-transition: all 400ms ease-in-out;
    -o-transition: all 400ms ease-in-out;
    -webkit-transition: all 400ms ease-in-out;
    transition: all 400ms ease-in-out;
}
.i-title .btn a:before{
content: "";
    position: absolute;
    z-index: 50;
    -moz-transition: all 1.4s ease;
    -o-transition: all 1.4s ease;
    -webkit-transition: all 1.4s ease;
    transition: all 1.4s ease;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(27,57,82,0.3);
    -moz-transform: scale(1.02, 1.02);
    -ms-transform: scale(1.02, 1.02);
    -webkit-transform: scale(1.02, 1.02);
    transform: scale(1.02, 1.02);
    -moz-transition: all 400ms ease-in-out;
    -o-transition: all 400ms ease-in-out;
    -webkit-transition: all 400ms ease-in-out;
    transition: all 400ms ease-in-out;
}
.i-title .btn a:after{
content: "";
    display: block;
    position: absolute;
    top: 2px;
    left: 2px;
    right: 2px;
    bottom: 2px;
    background-color: #1b3952;
    z-index: 100;
    -moz-transition: all 400ms ease-in-out;
    -o-transition: all 400ms ease-in-out;
    -webkit-transition: all 400ms ease-in-out;
    transition: all 400ms ease-in-out;
}
.i-title .btn a span{
position: relative;
    z-index: 300;
    -moz-transition: all 400ms ease-in-out;
    -o-transition: all 400ms ease-in-out;
    -webkit-transition: all 400ms ease-in-out;
    transition: all 400ms ease-in-out;
    padding-right: 30px;
    background: url(../images/img16.png) center right no-repeat;
}
.i-title .btn a:hover span{
background: url(../images/img17.png) center right no-repeat;
-moz-transition: all 400ms ease-in-out;
    -o-transition: all 400ms ease-in-out;
    -webkit-transition: all 400ms ease-in-out;
    transition: all 400ms ease-in-out;
}
 
如下图按钮效果二，鼠标经过会有背景填充的动画效果：

Html:
<div class="xbtn">
<a href="">
了解更多
<span></span>
</a>
</div>
Css:
.xbtn a{
position: relative;
    display: block;
margin: 20px auto;
text-align: center;    
width: 150px;
    height: 50px;
    line-height: 50px;
    max-width: 250px;
    color: #FFFFFF;
    text-transform: uppercase;
    overflow: hidden;
    border: 1px solid currentColor;
}
.xbtn a:hover{
color: #1b3952;
}
.xbtn a span{
position: absolute;
    display: block;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: #FFFFFF;
    -webkit-transform: translate(-50%, -50%);
    transform: translate(-50%, -50%);
    -webkit-transition: width 0.4s, height 0.4s;
    transition: width 0.4s, height 0.4s;
    z-index: -1;
}
.xbtn a:hover span {
    width: 320px;
    height: 320px;
}