有一个教程在这里就如何做到这一点在Photoshop:

我只想用CSS做这件事.我能越接近就是这个小提琴.
hr.fancy-line {
border: 0;
height: 1px;
background-image: -webkit-linear-gradient(left, rgba(0,0,0,0), rgba(215,215,215,0.75), rgba(0,0,0,0));
background-image: -moz-linear-gradient(left, rgba(0,0,0,0), rgba(215,215,215,0.75), rgba(0,0,0,0));
background-image: -ms-linear-gradient(left, rgba(0,0,0,0), rgba(215,215,215,0.75), rgba(0,0,0,0));
background-image: -o-linear-gradient(left, rgba(0,0,0,0), rgba(215,215,215,0.75), rgba(0,0,0,0));
box-shadow: 0px -2px 4px rgba(136,136,136,0.75);
}
Run Code Online (Sandbox Code Playgroud)
<hr class="fancy-line"></hr>
Run Code Online (Sandbox Code Playgroud)
在阴影上做渐变似乎很难.有什么想法我可以改进吗?