background: transparent;
outline: none;
}</p>
<p>button .wrapper {
display: block;
float: left;
background: #fff;
border: 0;
height: 5rem;
width: 25rem;
border-radius: 0.4rem;
position: relative;
box-shadow: inset 0 -0.3rem 0 0 rgba(0, 0, 0, 0.2), 0 0.1rem 0 0 rgba(0, 0, 0, 0.2);
transition: height 0.08s, margin 0.08s, box-shadow 0.08s, background 0.08s;
background: -moz-linear-gradient(0deg, #4d4d4d 0%, #4d4d4d 2%, #ffffff 2%, #ffffff 92%, #f5f5f5 92%, #f5f5f5 100%);
background: -webkit-linear-gradient(0deg, #4d4d4d 0%, #4d4d4d 2%, #ffffff 2%, #ffffff 92%, #f5f5f5 92%, #f5f5f5 100%);
background: linear-gradient(90deg, #4d4d4d 0%, #4d4d4d 2%, #ffffff 2%, #ffffff 92%, #f5f5f5 92%, #f5f5f5 100%);
}
button .wrapper:hover {
background: -moz-linear-gradient(0deg, #333333 0%, #333333 2%, #ffffff 2%, #ffffff 92%, #f5f5f5 92%, #f5f5f5 100%);
background: -webkit-linear-gradient(0deg, #333333 0%, #333333 2%, #ffffff 2%, #ffffff 92%, #f5f5f5 92%, #f5f5f5 100%);
background: linear-gradient(90deg, #333333 0%, #333333 2%, #ffffff 2%, #ffffff 92%, #f5f5f5 92%, #f5f5f5 100%);
}
button .wrapper:active {
margin-top: 0.3rem;
height: 4.7rem;
box-shadow: none;
}
大家可以看到，所有按钮的基本外观就出来了，包括3D的效果。
然后就是对每个按钮的边线颜色以及鼠标滑过和按钮按下的样式进行定义：
复制代码
button.blue .wrapper {
background: -moz-linear-gradient(0deg, #7db2e8 0%, #7db2e8 2%, #ffffff 2%, #ffffff 92%, #f5f5f5 92%, #f5f5f5 100%);
background: -webkit-linear-gradient(0deg, #7db2e8 0%, #7db2e8 2%, #ffffff 2%, #ffffff 92%, #f5f5f5 92%, #f5f5f5 100%);
background: linear-gradient(90deg, #7db2e8 0%, #7db2e8 2%, #ffffff 2%, #ffffff 92%, #f5f5f5 92%, #f5f5f5 100%);
}
button.blue .wrapper:hover {
background: -moz-linear-gradient(0deg, #5299e0 0%, #5299e0 2%, #ffffff 2%, #ffffff 92%, #f5f5f5 92%, #f5f5f5 100%);
background: -webkit-linear-gradient(0deg, #5299e0 0%, #5299e0 2%, #ffffff 2%, #ffffff 92%, #f5f5f5 92%, #f5f5f5 100%);
background: linear-gradient(90deg, #5299e0 0%, #5299e0 2%, #ffffff 2%, #ffffff 92%, #f5f5f5 92%, #f5f5f5 100%);
}</p>
<p>button.green .wrapper {
background: -moz-linear-gradient(0deg, #c4e87d 0%, #c4e87d 2%, #ffffff 2%, #ffffff 92%, #f5f5f5 92%, #f5f5f5 100%);
background: -webkit-linear-gradient(0deg, #c4e87d 0%, #c4e87d 2%, #ffffff 2%, #ffffff 92%, #f5f5f5 92%, #f5f5f5 100%);
background: linear-gradient(90deg, #c4e87d 0%, #c4e87d 2%, #ffffff 2%, #ffffff 92%, #f5f5f5 92%, #f5f5f5 100%);
}
button.green .wrapper:hover {
background: -moz-linear-gradient(0deg, #b1e052 0%, #b1e052 2%, #ffffff 2%, #ffffff 92%, #f5f5f5 92%, #f5f5f5 100%);
background: -webkit-linear-gradient(0deg, #b1e052 0%, #b1e052 2%, #ffffff 2%, #ffffff 92%, #f5f5f5 92%, #f5f5f5 100%);
