css3实现底部阴影按钮

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以下是 css3实现底部阴影按钮的示例演示效果:
当前平台(PC电脑)
平台:
整屏预览
部分效果截图:
HTML代码(index.html):
<!DOCTYPE HTML>
<html lang="en-US">
<head>
	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
	<title>css3实现底部阴影按钮</title>
    <style type="text/css">
body{ 
background: #dcdcdc;
}
.box{ 
width: 550px; 
text-align: center;
line-height: 46px; 
margin:40px auto; 
}
.btn{ 
position: relative;
font-weight:bold;
width: 124px; 
height: 44px; 
border-radius: 3px; 
border: 1px solid #c0c0c0; 
margin:0 50px 40px 0; 
 
}
.btn:nth-child(3n){
margin-right: 0;
}
.btn:nth-child(1){
color: #8c3e4a;
border-color: #ed7989;  
box-shadow:inset 0 1px 0 #f9a1b1,0 1px 0 rgba(0,0,0,.2);
background:-webkit-linear-gradient(top,#f78297,#f56c7e); 
background:-moz-linear-gradient(top,#f78297,#f56c7e); 
background:-o-linear-gradient(top,#f78297,#f56c7e); 
background:-ms-linear-gradient(top,#f78297,#f56c7e); 
background:linear-gradient(top,#f78297,#f56c7e); 
}
.btn:nth-child(1):hover{
background:-webkit-linear-gradient(top,#fbacbb,#f4798f); 
background:-moz-linear-gradient(top,#fbacbb,#f4798f); 
background:-o-linear-gradient(top,#fbacbb,#f4798f); 
background:-ms-linear-gradient(top,#fbacbb,#f4798f); 
background:linear-gradient(top,#fbacbb,#f4798f); 
}
.btn:nth-child(1):active{
top:4px;
box-shadow:inset 0 1px 3px #aa2c3d;
background:-webkit-linear-gradient(top,#e15c6d,#e15c6d); 
background:-moz-linear-gradient(top,#e15c6d,#e15c6d); 
background:-o-linear-gradient(top,#e15c6d,#e15c6d); 
background:-ms-linear-gradient(top,#e15c6d,#e15c6d); 
background:linear-gradient(top,#e15c6d,#e15c6d); 
 
}
.btn:nth-child(2){ 
color: #a67ea0; 
border-color: #e6addf; 
box-shadow:inset 0 1px 0 #ffdcfb,0 1px 0 rgba(0,0,0,.2);
background:-webkit-linear-gradient(top,#ffd0f9,#ffc2f7); 
background:-moz-linear-gradient(top,#ffd0f9,#ffc2f7); 
background:-o-linear-gradient(top,#ffd0f9,#ffc2f7); 
background:-ms-linear-gradient(top,#ffd0f9,#ffc2f7); 
background:linear-gradient(top,#ffd0f9,#ffc2f7); 
}
.btn:nth-child(2):hover{
background:-webkit-linear-gradient(top,#ffdefb,#fdc7f6); 
background:-moz-linear-gradient(top,#ffdefb,#fdc7f6); 
background:-o-linear-gradient(top,#ffdefb,#ffc2f7); 
background:-ms-linear-gradient(top,#ffdefb,#ffc2f7); 
background:linear-gradient(top,#ffdefb,#ffc2f7); 
}
.btn:nth-child(2):active{
top:4px;
box-shadow:inset 0 1px 3px #be27aa;
background:-webkit-linear-gradient(top,#f3b0ea,#f3b0ea); 
background:-moz-linear-gradient(top,#f3b0ea,#f3b0ea); 
background:-o-linear-gradient(top,#f3b0ea,#f3b0ea); 
background:-ms-linear-gradient(top,#f3b0ea,#f3b0ea); 
background:linear-gradient(top,#f3b0ea,#f3b0ea); 
}
.btn:nth-child(3){
color: #923e3e; 
border-color: #b74545; 
box-shadow:inset 0 1px 0 #fe8585,0 1px 0 rgba(0,0,0,.2);
background:-webkit-linear-gradient(top,#fd5c5c,#fd4a4a); 
background:-moz-linear-gradient(top,#fd5c5c,#fd4a4a); 
background:-ms-linear-gradient(top,#fd5c5c,#fd4a4a); 
background:-o-linear-gradient(top,#fd5c5c,#fd4a4a); 
background:linear-gradient(top,#fd5c5c,#fd4a4a); 
}
.btn:nth-child(3):hover{
background:-webkit-linear-gradient(top,#fd8d8d,#ff6161); 
background:-moz-linear-gradient(top,#fd8d8d,#ff6161); 
background:-o-linear-gradient(top,#fd8d8d,#ff6161); 
background:-ms-linear-gradient(top,#fd8d8d,#ff6161); 
background:linear-gradient(top,#fd8d8d,#ff6161); 
}
.btn:nth-child(3):active{
top:4px;
box-shadow:inset 0 1px 3px #a31818;
background:-webkit-linear-gradient(top,#d43535,#d43535); 
background:-moz-linear-gradient(top,#d43535,#d43535); 
background:-ms-linear-gradient(top,#d43535,#d43535); 
background:-o-linear-gradient(top,#d43535,#d43535); 
background:linear-gradient(top,#d43535,#d43535); 
}
.btn:nth-child(4){ 
color: #7f7f7f;
border-color: #c8c8c8;  
box-shadow:inset 0 1px 0 #e0e0e0,0 1px 0 rgba(0,0,0,.2);
background:-webkit-linear-gradient(top,#d7d7d7,#b7b7b7); 
background:-moz-linear-gradient(top,#d7d7d7,#b7b7b7); 
background:-o-linear-gradient(top,#d7d7d7,#b7b7b7); 
background:-ms-linear-gradient(top,#d7d7d7,#b7b7b7); 
background:linear-gradient(top,#d7d7d7,#b7b7b7); 
}
.btn:nth-child(4):hover{
background:-webkit-linear-gradient(top,#e3e3e3,#c2c0c0); 
background:-moz-linear-gradient(top,#e3e3e3,#c2c0c0); 
background:-o-linear-gradient(top,#e3e3e3,#c2c0c0); 
background:-ms-linear-gradient(top,#e3e3e3,#c2c0c0); 
background:linear-gradient(top,#e3e3e3,#c2c0c0); 
}
.btn:nth-child(4):active{
top:4px;
box-shadow:inset 0 1px 3px #555;
background:-webkit-linear-gradient(top,#a2a2a2,#a2a2a2); 
background:-moz-linear-gradient(top,#a2a2a2,#a2a2a2); 
background:-ms-linear-gradient(top,#a2a2a2,#a2a2a2); 
background:-o-linear-gradient(top,#a2a2a2,#a2a2a2); 
background:linear-gradient(top,#a2a2a2,#a2a2a2); 
}
.btn:nth-child(5){ 
color: #3295a4; 
border-color: #62d4e5; 
box-shadow:inset 0 1px 0 #92f3fe,0 1px 0 rgba(0,0,0,.2);
background:-webkit-linear-gradient(top,#71effe,#4be2fe); 
background:-moz-linear-gradient(top,#71effe,#4be2fe); 
background:-o-linear-gradient(top,#71effe,#4be2fe); 
background:-ms-linear-gradient(top,#71effe,#4be2fe); 
background:linear-gradient(top,#71effe,#4be2fe); 
}
.btn:nth-child(5):hover{
background:-webkit-linear-gradient(top,#9df5ff,#6ce6fc); 
background:-moz-linear-gradient(top,#9df5ff,#6ce6fc); 
background:-o-linear-gradient(top,#9df5ff,#6ce6fc); 
background:-ms-linear-gradient(top,#9df5ff,#6ce6fc); 
background:linear-gradient(top,#9df5ff,#6ce6fc); 
}
.btn:nth-child(5):active{
top:4px;
box-shadow:inset 0 1px 3px #1d8194;
background:-webkit-linear-gradient(top,#2bbed9,#2bbed9); 
background:-moz-linear-gradient(top,#2bbed9,#2bbed9); 
background:-o-linear-gradient(top,#2bbed9,#2bbed9); 
background:-ms-linear-gradient(top,#2bbed9,#2bbed9); 
background:linear-gradient(top,#2bbed9,#2bbed9); 
}
.btn:nth-child(6){ 
color: #a9a056;
border-color: #ddcc52;  
box-shadow:inset 0 1px 0 #fff48f,0 1px 0 rgba(0,0,0,.2);
background:-webkit-linear-gradient(top,#fff16d,#ffe647);
background:-moz-linear-gradient(top,#fff16d,#ffe647);
background:-ms-linear-gradient(top,#fff16d,#ffe647); 
background:-o-linear-gradient(top,#fff16d,#ffe647); 
background:linear-gradient(top,#fff16d,#ffe647); 
}
.btn:nth-child(6):hover{
background:-webkit-linear-gradient(top,#fff69f,#ffea61); 
background:-moz-linear-gradient(top,#fff69f,#ffea61); 
background:-o-linear-gradient(top,#fff69f,#ffea61); 
background:-ms-linear-gradient(top,#fff69f,#ffea61); 
background:linear-gradient(top,#fff69f,#ffea61); 
}
.btn:nth-child(6):active{
top:4px;
box-shadow:inset 0 1px 3px #bbac23;
background:-webkit-linear-gradient(top,#e2d12c,#e2d12c); 
background:-moz-linear-gradient(top,#e2d12c,#e2d12c); 
background:-o-linear-gradient(top,#e2d12c,#e2d12c); 
background:-ms-linear-gradient(top,#e2d12c,#e2d12c); 
background:linear-gradient(top,#e2d12c,#e2d12c); 
}
.btn:nth-child(7){ 
color: #8f7031;
border-color: #f1c462;  
box-shadow:inset 0 1px 0 #fee392,0 1px 0 rgba(0,0,0,.2);
background:-webkit-linear-gradient(top,#feda71,#f6be53);
background:-moz-linear-gradient(top,#feda71,#f6be53);
background:-ms-linear-gradient(top,#feda71,#f6be53); 
background:-o-linear-gradient(top,#feda71,#f6be53); 
background:linear-gradient(top,#feda71,#f6be53); 
}
.btn:nth-child(7):hover{
background:-webkit-linear-gradient(top,#ffe28e,#f6c463); 
background:-moz-linear-gradient(top,#ffe28e,#f6c463); 
background:-ms-linear-gradient(top,#ffe28e,#f6c463); 
background:-o-linear-gradient(top,#ffe28e,#f6c463); 
background:linear-gradient(top,#ffe28e,#f6c463); 
}
.btn:nth-child(7):active{
top:4px;
box-shadow:inset 0 1px 3px #b78421;
background:-webkit-linear-gradient(top,#e4ab3d,#e4ab3d); 
background:-moz-linear-gradient(top,#e4ab3d,#e4ab3d); 
background:-o-linear-gradient(top,#e4ab3d,#e4ab3d); 
background:-ms-linear-gradient(top,#e4ab3d,#e4ab3d); 
background:linear-gradient(top,#e4ab3d,#e4ab3d); 
}
.btn:nth-child(8){ 
color: #678333;
border-color: #a7c570;  
box-shadow:inset 0 1px 0 #d5e89f,0 1px 0 rgba(0,0,0,.2);
background:-webkit-linear-gradient(top,#cae285,#9cc15c);
background:-moz-linear-gradient(top,#cae285,#9cc15c);
background:-ms-linear-gradient(top,#cae285,#9cc15c); 
background:-o-linear-gradient(top,#cae285,#9cc15c); 
background:linear-gradient(top,#cae285,#9cc15c); 
}
.btn:nth-child(8):hover{
background:-webkit-linear-gradient(top,#d8ed9b,#acce70); 
background:-moz-linear-gradient(top,#d8ed9b,#acce70); 
background:-o-linear-gradient(top,#d8ed9b,#acce70); 
background:-ms-linear-gradient(top,#d8ed9b,#acce70); 
background:linear-gradient(top,#d8ed9b,#acce70); 
}
.btn:nth-child(8):active{
top:4px;
box-shadow:inset 0 1px 3px #5a7d1e;
background:-webkit-linear-gradient(top,#84ad3e,#84ad3e); 
background:-moz-linear-gradient(top,#84ad3e,#84ad3e); 
background:-ms-linear-gradient(top,#84ad3e,#84ad3e); 
background:-o-linear-gradient(top,#84ad3e,#84ad3e); 
background:linear-gradient(top,#84ad3e,#84ad3e); 
}
.btn:nth-child(9){ 
color: #2d2d2d;
border-color: #555555; 
box-shadow:inset 0 1px 0 #7a7a7a,0 1px 0 rgba(0,0,0,.2);
background:-webkit-linear-gradient(top,#595959,#464646); 
background:-moz-linear-gradient(top,#595959,#464646); 
background:-o-linear-gradient(top,#595959,#464646); 
background:-ms-linear-gradient(top,#595959,#464646); 
background:linear-gradient(top,#595959,#464646); 
}
.btn:nth-child(9):hover{
background:-webkit-linear-gradient(top,#7a7a7a,#5d5c5c); 
background:-moz-linear-gradient(top,#7a7a7a,#5d5c5c); 
background:-o-linear-gradient(top,#7a7a7a,#5d5c5c); 
background:-ms-linear-gradient(top,#7a7a7a,#5d5c5c); 
background:linear-gradient(top,#7a7a7a,#5d5c5c); 
}
.btn:nth-child(9):active{
top:4px;
box-shadow:inset 0 1px 3px #222; 
background:-webkit-linear-gradient(top,#444343,#444343); 
background:-moz-linear-gradient(top,#444343,#444343); 
background:-o-linear-gradient(top,#444343,#444343); 
background:-ms-linear-gradient(top,#444343,#444343); 
background:linear-gradient(top,#444343,#444343); 
}
.btn:nth-child(10){ 
color: #368eb0; 
border-color: #88cde7; 
box-shadow:inset 0 1px 0 #bce9f9,0 1px 0 rgba(0,0,0,.2);
background:-webkit-linear-gradient(top,#abe4f8,#70c6e7);
background:-moz-linear-gradient(top,#abe4f8,#70c6e7);
background:-ms-linear-gradient(top,#abe4f8,#70c6e7); 
background:-o-linear-gradient(top,#abe4f8,#70c6e7); 
background:linear-gradient(top,#abe4f8,#70c6e7); 
}
.btn:nth-child(10):hover{
background:-webkit-linear-gradient(top,#c2ecfb,#8cd6f2); 
background:-moz-linear-gradient(top,#c2ecfb,#8cd6f2); 
background:-o-linear-gradient(top,#c2ecfb,#8cd6f2); 
background:-ms-linear-gradient(top,#c2ecfb,#8cd6f2); 
background:linear-gradient(top,#c2ecfb,#8cd6f2); 
}
.btn:nth-child(10):active{
top:4px;
box-shadow:inset 0 1px 3px #257797;
background:-webkit-linear-gradient(top,#5eacc9,#5eacc9); 
background:-moz-linear-gradient(top,#5eacc9,#5eacc9); 
background:-ms-linear-gradient(top,#5eacc9,#5eacc9); 
background:-o-linear-gradient(top,#5eacc9,#5eacc9); 
background:linear-gradient(top,#5eacc9,#5eacc9); 
}
.btn:nth-child(11){
color: #46678b;
border-color: #7ea4cf; 
box-shadow:inset 0 1px 0 #a9cded,0 1px 0 rgba(0,0,0,.2);
background:-webkit-linear-gradient(top,#94c1e9,#6ea1e1);
background:-moz-linear-gradient(top,#94c1e9,#6ea1e1);
background:-ms-linear-gradient(top,#94c1e9,#6ea1e1); 
background:-o-linear-gradient(top,#94c1e9,#6ea1e1); 
background:linear-gradient(top,#94c1e9,#6ea1e1); 
}
.btn:nth-child(11):hover{
background:-webkit-linear-gradient(top,#a7d1f7,#79aae9); 
background:-moz-linear-gradient(top,#a7d1f7,#79aae9); 
background:-ms-linear-gradient(top,#a7d1f7,#79aae9); 
background:-o-linear-gradient(top,#a7d1f7,#79aae9); 
background:linear-gradient(top,#a7d1f7,#79aae9); 
}
.btn:nth-child(11):active{
top:4px;
box-shadow:inset 0 1px 3px #205aa2;
background:-webkit-linear-gradient(top,#6391cb,#6391cb); 
background:-moz-linear-gradient(top,#6391cb,#6391cb); 
background:-ms-linear-gradient(top,#6391cb,#6391cb); 
background:-o-linear-gradient(top,#6391cb,#6391cb); 
background:linear-gradient(top,#6391cb,#6391cb); 
}
.btn:nth-child(12){
color: #784e6a;
border-color: #c681af; 
box-shadow:inset 0 1px 0 #ebadd5,0 1px 0 rgba(0,0,0,.2);
background:-webkit-linear-gradient(top,#e699cb,#d677b8); 
background:-moz-linear-gradient(top,#e699cb,#d677b8); 
background:-ms-linear-gradient(top,#e699cb,#d677b8); 
background:-o-linear-gradient(top,#e699cb,#d677b8); 
background:linear-gradient(top,#e699cb,#d677b8); 
}
.btn:nth-child(12):hover{
background:-webkit-linear-gradient(top,#f4b5de,#e082c2); 
background:-moz-linear-gradient(top,#f4b5de,#e082c2); 
background:-o-linear-gradient(top,#f4b5de,#e082c2); 
background:-ms-linear-gradient(top,#f4b5de,#e082c2); 
background:linear-gradient(top,#f4b5de,#e082c2); 
}
.btn:nth-child(12):active{
top:4px;
box-shadow:inset 0 1px 3px #9a2073;
background:-webkit-linear-gradient(top,#cc6dae,#cc6dae); 
background:-moz-linear-gradient(top,#cc6dae,#cc6dae); 
background:-ms-linear-gradient(top,#cc6dae,#cc6dae); 
background:-o-linear-gradient(top,#cc6dae,#cc6dae); 
background:linear-gradient(top,#cc6dae,#cc6dae); 
}
.btn:nth-child(13){ 
color: #b27171;
border-color: #efb1b1;  
box-shadow:inset 0 1px 0 #ffd1d1,0 1px 0 rgba(0,0,0,.2);
background:-webkit-linear-gradient(top,#ffc5c5,#ff9595); 
background:-moz-linear-gradient(top,#ffc5c5,#ff9595); 
background:-o-linear-gradient(top,#ffc5c5,#ff9595); 
background:-ms-linear-gradient(top,#ffc5c5,#ff9595); 
background:linear-gradient(top,#ffc5c5,#ff9595); 
}
.btn:nth-child(13):hover{
background:-webkit-linear-gradient(top,#ffd5d5,#fd9a9a); 
background:-moz-linear-gradient(top,#ffd5d5,#fd9a9a); 
background:-o-linear-gradient(top,#ffd5d5,#fd9a9a); 
background:-ms-linear-gradient(top,#ffd5d5,#fd9a9a); 
background:linear-gradient(top,#ffd5d5,#fd9a9a); 
}
.btn:nth-child(13):active{
top:4px;
box-shadow:inset 0 1px 3px #c94b4b;
background:-webkit-linear-gradient(top,#e99292,#e99292); 
background:-moz-linear-gradient(top,#e99292,#e99292); 
background:-ms-linear-gradient(top,#e99292,#e99292); 
background:-o-linear-gradient(top,#e99292,#e99292); 
background:linear-gradient(top,#e99292,#e99292); 
}
.btn:nth-child(14){ 
color: #848484;
border-color: #cecece;  
box-shadow:inset 0 1px 0 #ececec,0 1px 0 rgba(0,0,0,.2);
background:-webkit-linear-gradient(top,#e5e5e5,#d5d5d5);
background:-moz-linear-gradient(top,#e5e5e5,#d5d5d5);
background:-o-linear-gradient(top,#e5e5e5,#d5d5d5);
background:-ms-linear-gradient(top,#e5e5e5,#d5d5d5);
background:linear-gradient(top,#e5e5e5,#d5d5d5);
}
.btn:nth-child(14):hover{
background:-webkit-linear-gradient(top,#f0f0f0,#dedddd); 
background:-moz-linear-gradient(top,#f0f0f0,#dedddd); 
background:-o-linear-gradient(top,#f0f0f0,#dedddd); 
background:-ms-linear-gradient(top,#f0f0f0,#dedddd); 
background:linear-gradient(top,#f0f0f0,#dedddd); 
}
.btn:nth-child(14):active{
top:4px;
box-shadow:inset 0 1px 3px #acacac;
background:-webkit-linear-gradient(top,#c6c6c6,#c6c6c6); 
background:-moz-linear-gradient(top,#c6c6c6,#c6c6c6); 
background:-o-linear-gradient(top,#c6c6c6,#c6c6c6); 
background:-ms-linear-gradient(top,#c6c6c6,#c6c6c6); 
background:linear-gradient(top,#c6c6c6,#c6c6c6); 
}
.btn:nth-child(15){ 
color: #21729d; 
border-color: #2b9fd9; 
box-shadow:inset 0 1px 0 #6accf6,0 1px 0 rgba(0,0,0,.2);
background:-webkit-linear-gradient(top,#38bbf3,#2ca2e3);
background:-moz-linear-gradient(top,#38bbf3,#2ca2e3);
background:linear-gradient(top,#38bbf3,#2ca2e3);
}
.btn:nth-child(15):hover{
background:-webkit-linear-gradient(top,#6ad2ff,#3fafed); 
background:-moz-linear-gradient(top,#6ad2ff,#3fafed); 
background:-ms-linear-gradient(top,#6ad2ff,#3fafed); 
background:-o-linear-gradient(top,#6ad2ff,#3fafed); 
background:linear-gradient(top,#6ad2ff,#3fafed); 
}
.btn:nth-child(15):active{
top:4px;
box-shadow:inset 0 1px 3px #298cc3;
background:-webkit-linear-gradient(top,#4ea5d5,#4ea5d5); 
background:-moz-linear-gradient(top,#4ea5d5,#4ea5d5); 
background:-o-linear-gradient(top,#4ea5d5,#4ea5d5); 
background:-ms-linear-gradient(top,#4ea5d5,#4ea5d5); 
background:linear-gradient(top,#4ea5d5,#4ea5d5); 
}
.btn:before,
.btn:after{
position: absolute;
content: "";
height: 50%;
border-radius: 50%;
z-index: -1;
}
.btn:before {
width: 90%;
left: 5%;
top:12%;
box-shadow: 0 -7px 4px rgba(0,0,0,0.3);
}
.btn:active:before {
width: 90%;
left: 5%;
top:12%;
box-shadow: 0 0 2px rgba(0,0,0,0.3);
}
.btn:after {
width: 80%;
left: 10%;
bottom: 9%;
box-shadow: 0 7px 4px rgba(0,0,0,0.4);
}
.btn:active:after {
width: 80%;
left: 10%;
bottom: 9%;
box-shadow: 0 0 0 rgba(0,0,0,0.4);
}
.box p:last-child{ 
font-size: 20px; 
font-weight: bold;
}
.box p:last-child span{ 
color: #fff;
}
	</style>
</head>
<body>

<div class="page">
	<header id="header">
		<hgrounp class="blank">
			<h1></h1>
			<h2><h2>
		</hgrounp>
	</header>
	<section class="demo">

<div class="box">
	<div class="form-actions">
		<button type="button" class="btn">Click Me</button>
		<button type="button" class="btn">Click Me</button>
		<button type="button" class="btn">Click Me</button>
		<button type="button" class="btn">Click Me</button>
		<button type="button" class="btn">Click Me</button>
		<button type="button" class="btn">Click Me</button>
		<button type="button" class="btn">Click Me</button>
		<button type="button" class="btn">Click Me</button>
		<button type="button" class="btn">Click Me</button>
		<button type="button" class="btn">Click Me</button>
		<button type="button" class="btn">Click Me</button>
		<button type="button" class="btn">Click Me</button>
		<button type="button" class="btn">Click Me</button>
		<button type="button" class="btn">Click Me</button>
		<button type="button" class="btn">Click Me</button>
	</div>
</div>
</section>
</div>
</body>
</html>
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