css3 线性渐变和径向渐变

线性渐变：ie6以下不兼容

径向渐变：只支持firefox、Chrome和Safari

<!DOCTYPE html> 
<html> 
<head> 
<meta http-equiv="Content-Type" content="text/html" charset="utf-8" /> 
<title>Background Color</title> 
<style type="text/css"> 
* { 
marigin:0; 
padding:0; 
} 
div{ 
margin-bottom:20px; 
width:300px; 
height:100px; 
} 
.linear{/*线性渐变样式*/ 
background-color: #1FA9F4; /* Old browsers */ 
background-image: -moz-linear-gradient(top,#1FA9F4 0%, #001C4E 100%); /* FF3.6+ */ 
background-image: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#1FA9F4), color-stop(100%,#001C4E)); /* Chrome,Safari4+ */ 
background-image: -o-linear-gradient(top,#1FA9F4 0%, #001C4E 100%); /* Opera 11.10+ */ 
background-image: -ms-linear-gradient(top,#1FA9F4 0%, #001C4E 100%); /* IE10+ */ 
background-image: linear-gradient(to bottom,#1FA9F4 0%, #001C4E 100%); /* W3C */ 
filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#1FA9F4', endColorstr='#001C4E',GradientType=0 ); /* IE6-8 */ 
} 
.circle{/*径向渐变样式*/ 
background-color: #1FA9F4; /* Other browsers*/ 
background-image:-moz-radial-gradient(center 80px 45deg, circle farthest-corner, #1FA9F4 0%, #001C4E 100%); /* FF3.6+ */ 
background-image: -webkit-gradient(radial,50% 100%,10,50% 50%,90,from(rgba(31,169,244,1)),to(rgba(0,28,78,1))); /* Chrome,Safari4+ */ 
} 
</style> 
</head> 
<body> 
<div class="linear"> 
</div> 
<div class="circle"> 
</div> 
</body> 
</html>

注意：background-image 可以写 background

我自己在网页中写的径向渐变兼容代码：firefox、chrome、IE10、IE10+、safari（background-image老式写法）兼容

background: rgb(98, 37, 140);
background:-webkit-radial-gradient(circle at top, rgb(160, 114, 193),rgb(98, 37, 140));
background-image: -webkit-gradient(radial,50% 0%,0,50% 55%,90,from(rgb(160, 114, 193)),to(rgb(98, 37, 140)));/* Safari 4-5, Chrome 1-9 */
background:radial-gradient(circle at top, rgb(160, 114, 193),rgb(98, 37, 140));
background:-moz-radial-gradient(circle at top, rgb(160, 114, 193),rgb(98, 37, 140));
background:-ms-radial-gradient(circle at top, rgb(160, 114, 193),rgb(98, 37, 140));

线性渐变兼容代码：firefox、chrome、IE10、IE10+、safari兼容

background: rgb(247, 100, 14);
background:-webkit-linear-gradient(top, rgb(251, 121, 46) ,rgb(247, 100, 14));/* safari,chrome*/
background:linear-gradient(top, rgb(251, 121, 46) ,rgb(247, 100, 14));
background:-moz-linear-gradient(top, rgb(251, 121, 46) ,rgb(247, 100, 14));
background:-ms-linear-gradient(top, rgb(251, 121, 46) ,rgb(247, 100, 14));

附图

径向

线性