background linear gradient

背景颜色渐变

HTML

<div class="linear-color">linear color change</div>

CSS

.linear-color{
    width: 300px;
    height: 200px;
    color: #fff;
}
	/* 渐变效果 type1 */
/* 
.linear-color{
    background: olive linear-gradient(to right, rgba(0,255,0,0), rgba(0,255,0,.5));
    transition: all .5s;
}
.linear-color:hover{
    background-color: purple;
}
 */
	/* 渐变效果 type2 */
/* 
.linear-color{
    background: linear-gradient(to right, olive, green);
    position: relative;
    z-index: 0;
}
.linear-color::before{
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to right, green, purple);
    opacity: 0;
    transition: all .5s;
    z-index: -1;
}
.linear-color:hover::before{
    opacity: 1;
}
 */
	/* 渐变效果 type3 */
.linear-color{
    background: linear-gradient(to right, olive, green, purple);
    background-size: 200%;
    transition: all .5s;
}
.linear-color:hover{
    background-position: 100%;
}