text-shadow: h-shadow v-shadow blur color
text-shadow: 水平发光 垂直发光 模糊(发光)距离 发光颜色
举例:
p
{
text-shadow: 2px 3px 5px #FF0000
}
以上这个例子意思是:水平向右偏移2px,垂直向下偏移3px,模糊(发光)距离为5px,颜色为红色;
希望我的回答能够帮到您~
一个使用伪元素来实现边框逐渐发光的代码,主要用到scale和opacity这两个属性。Html代码
<div>
<img src="http://tva2.sinaimg.cn/crop.0.0.180.180.180/6830a53bjw8f2qo4xzc2zj20500500t0.jpg"/>
<div>
<p>CSS3 逐渐发光的方格边框</p>
<p>CSS3 逐渐发光的方格边框</p>
</div>
</div>
Css代码
.light{
background: #fff
width: 180px
height: 180px
margin: 100px auto
position: relative
text-align: center
color: #333
transform:translate3d(0,0,0)
}
.light-inner{
padding: 60px 30px 0
pointer-events: none
position: absolute
left: 0
top: 0
bottom: 0
right: 0
text-align: center
transition: background 0.35s
backface-visibility: hidden
}
.light-inner:before, .light-inner:after{
display: block
content: ""
position: absolute
left: 30px
top: 30px
right: 30px
bottom: 30px
border: 1px solid #fff
opacity: 0
transition: opacity 0.35s, transform 0.35s
}
.light-inner:before{
border-left: 0
border-right: 0
transform:scaleX(0,1)
}
.light-inner:after{
border-top: 0
border-bottom: 0
transform: scaleY(1,0)
}
.light:hover .light-inner{
background: #458fd2
}
.light:hover .light-inner:before, .light:hover .light-inner:after{
opacity: 1
transform: scale3d(1,1,1)
}
.light-inner p{
transition: opacity .35s, transform 0.35s
transform: translate3d(0,20px,0)
color: #fff
opacity: 0
line-height: 30px
}
.light:hover .light-inner p{
transform: translate3d(0,0,0)
opacity: 1
}