css3 给背景设置渐变色的方法

css 给网页中的背景设置渐变色，css的渐变颜色可以指定固定的两个颜色之前的线性过度，这个css3属性只支持高版本的浏览器。

//浏览器前缀
background: linear-gradient(red, blue);
background: -webkit-linear-gradient(red, blue);
background: -o-linear-gradient(red, blue);
background: -moz-linear-gradient(red, blue);

to top :颜色从下往上渐变：

background:-webkit-linear-gradient(to top, red, blue);
background:linear-gradient(to top,red,blue);

to bottom :颜色从上往下渐变：

background:-webkit-linear-gradient(to bottom, red, blue);
background:linear-gradient(to bottom,red,blue);

to left :颜色从右往左渐变：

background:-webkit-linear-gradient(to left, red, blue);
background:linear-gradient(to left,red,blue);

to right :颜色从左往右渐变

background:-webkit-linear-gradient(to right, red, blue);
background:linear-gradient(to right,red,blue);

to right :颜色从左往右渐变

background:-webkit-linear-gradient(to right, red, blue);
background:linear-gradient(to right,red,blue);

to bototm right :颜色从左上角度到右下角渐变

background:-webkit-linear-gradient(to right, red, blue);
background:linear-gradient(to right,red,blue);

to top left :颜色从右下角度到左上角渐变

background:-webkit-linear-gradient(to right, red, blue);
background:linear-gradient(to right,red,blue);