body{}{
FILTER: progid:DXImageTransform.Microsoft.Gradient(gradientType=0,startColorStr=#ffffff,endColorStr=#000000)"
}
二、从左上至右下渐变
body{}{
FILTER: Alpha( style=1,opacity=25,finishOpacity=100,startX=50,finishX= 100,startY=50,finishY=100)
background-color: skyblue
}
三、从左往右渐变
body{}{
FILTER: progid:DXImageTransform.Microsoft.Gradient(gradientType=1,startColorStr=#ffffff,endColorStr=#000000)"
}
要得上面的线性渐变效果，我们这样去定义CSS3样式： background-image: -moz-linear-gradient(top, #8fa1ff, #3757fa)/* Firefox */ background-image: -webkit-gradient(linear, left top, left bottom, color-stop(0, #ff4f02), color-stop(1, #8f2c00))/* Saf4+, Chrome */ filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#c6ff00', endColorstr='#538300', GradientType='0')/* IE*/-moz-linear-gradient有三个参数。第一个参数表示线性渐变的方向，top是从上到下、left是从左到右，如果定义成left top，那就是从左上角到右下角。第二个和第三个参数分别是起点颜色和终点颜色。你还可以在它们之间插入更多的参数，表示多种颜色的渐变。线性渐变使用from()以及to()方法指定过渡颜色点: background: -webkit-gradient(linear, left top, left bottom, from(#96ff00), color-stop(0.5, orange), to(rgb(255, 0, 0)))线性渐变多个过渡点在同一位置： background:-webkit-gradient(linear, left top, left bottom, from(#00abeb), to(#fff), color-stop(0.5, #fff), color-stop(0.5, #66cc00))径向渐变综合效果演示： background: -moz-radial-gradient(30px 30px, circle farthest-corner, #58ff00 0%, rgba(222, 255, 0, 0) 30%), -moz-radial-gradient(50px 70px, circle farthest-corner, #F30 0%, rgba(255, 159, 34, 0) 60%), -moz-radial-gradient(80px 10px, circle farthest-corner, #03F 0%, rgba(222, 255, 0, 0) 80%)background:-webkit-gradient(radial, 105 105, 20, 112 120, 50, from(#ff5f98), to(rgba(255,1,136,0)), color-stop(75%, #ff0188)), -webkit-gradient(radial, 95 15, 15, 102 20, 40, from(#00c9ff), to(rgba(0,201,255,0)), color-stop(80%, #00b5e2)), -webkit-gradient(radial, 0 150, 50, 0 140, 90, from(#f4f201), to(rgba(228, 199,0,0)), color-stop(80%, #e4c700))circle farthest-corner圆形渐变，ellipse farthest-corner椭圆渐变
