CSS實現網頁漸變背景

從上到下

   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);
}
    四、从上往下渐变     style="filter:progid:DXImageTransform.microsoft.gradient(gradienttype=0,startColorStr=blue,endColorStr=