我想使用border-image和linear-gradient来模拟阴影效果(出于滚动性能的原因,我没有使用原生的盒子阴影效果)。
从下面的示例和fiddle中可以看出,我尝试过的方法涉及使用渐变边框图像,边框图像开始将阴影移动到内容框外部,以及边框宽度仅显示底部边缘。
不可否认,我不太了解边界图像,特别是在使用线性渐变时。通过反复试验,我取得了令人满意的结果。但事实证明,当div的宽度足够短时,“阴影”就会完全消失。
我可以做些什么来实现像顶部框一样的投影,但是无论盒子大小如何都可以使用?非常感谢您对此的帮助!
.box
{
/* the "shadow" */
border-image: linear-gradient(to bottom, rgba(0,0,0,0.5) 0%, rgba(0,0,0,0.5) 10%, rgba(0,0,0,0) 100%) 100 repeat;
border-image-outset: 0px 0px 6px 0px;
border-width: 0px 0px 6px 0px;
border-style: solid;
/* other stuff */
font-family: sans-serif;
font-size: 20px;
color: #FEFEFE;
background: #007277;
margin: 10px 0px;
float: left;
clear: left;
padding: 50px;
}
<div class="box">
Here's longer text, where the "shadow" appears how I want it to.
</div>
<div class="box">
Short
</div>
答案 0 :(得分:1)
要使短边界起作用,您需要更改
100 repeat;
到
0 0 100 0 repeat;
.box
{
/* the "shadow" */
border-image: linear-gradient(to bottom, rgba(0,0,0,0.5) 0%, rgba(0,0,0,0.5) 10%, rgba(0,0,0,0) 100%) 0 0 100 0 repeat;
border-image-outset: 0px 0px 6px 0px;
border-width: 0px 0px 6px 0px;
border-style: solid;
/* other stuff */
font-family: sans-serif;
font-size: 20px;
color: #FEFEFE;
background: #007277;
margin: 10px 0px;
float: left;
clear: left;
padding: 50px;
}
&#13;
<div class="box">
Here's longer text, where the "shadow" appears how I want it to.
</div>
<div class="box">
Short
</div>
&#13;
此链接可以帮助您进行边框成像https://css-tricks.com/understanding-border-image/