css3中background-image能否实现从上到下渐变的同时，从左到右也能渐变

Question

background-image是线性渐变，根据角度来渐变也是线性的，暂无法实现两个方向的渐变

Answer 1

<div&nbsp;id="grad"></div>#grad&nbsp;{&nbsp;&nbsp;&nbsp;&nbsp;width:200px;&nbsp;&nbsp;&nbsp;&nbsp;height:200px;&nbsp;&nbsp;background:&nbsp;-webkit-linear-gradient(45deg,&nbsp;red,&nbsp;blue); }