JSFiddle - React, Tailwind, and code Playground
by andresilich
HTML
<p>Pellentesque habitant morbi tristique senectus et netus et malesuada fames ac turpis egestas. Vestibulum tortor quam, feugiat vitae, ultricies eget, tempor sit amet, ante. Donec eu libero sit amet quam egestas semper. Aenean ultricies mi vitae est. Mauris placerat eleifend leo.</p>
<hr>
<p>Pellentesque habitant morbi tristique senectus et netus et malesuada fames ac turpis egestas. Vestibulum tortor quam, feugiat vitae, ultricies eget, tempor sit amet, ante. Donec eu libero sit amet quam egestas semper. Aenean ultricies mi vitae est. Mauris placerat eleifend leo.</p>
CSS
hr {
border: 0;
height: 2px;
margin:18px 0;
position:relative;
background: -moz-linear-gradient(left, rgba(0,0,0,0) 0%, rgba(0,0,0,0) 10%, rgba(0,0,0,0.65) 50%, rgba(0,0,0,0) 90%, rgba(0,0,0,0) 100%); /* FF3.6+ */
background: -webkit-gradient(linear, left top, right top, color-stop(0%,rgba(0,0,0,0)), color-stop(10%,rgba(0,0,0,0)), color-stop(50%,rgba(0,0,0,0.65)), color-stop(90%,rgba(0,0,0,0)), color-stop(100%,rgba(0,0,0,0))); /* Chrome,Safari4+ */
background: -webkit-linear-gradient(left, rgba(0,0,0,0) 0%,rgba(0,0,0,0) 10%,rgba(0,0,0,0.65) 50%,rgba(0,0,0,0) 90%,rgba(0,0,0,0) 100%); /* Chrome10+,Safari5.1+ */
background: -o-linear-gradient(left, rgba(0,0,0,0) 0%,rgba(0,0,0,0) 10%,rgba(0,0,0,0.65) 50%,rgba(0,0,0,0) 90%,rgba(0,0,0,0) 100%); /* Opera 11.10+ */
background: -ms-linear-gradient(left, rgba(0,0,0,0) 0%,rgba(0,0,0,0) 10%,rgba(0,0,0,0.65) 50%,rgba(0,0,0,0) 90%,rgba(0,0,0,0) 100%); /* IE10+ */
background: linear-gradient(left, rgba(0,0,0,0) 0%,rgba(0,0,0,0) 10%,rgba(0,0,0,0.65) 50%,rgba(0,0,0,0) 90%,rgba(0,0,0,0) 100%); /* W3C */
filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#00000000', endColorstr='#00000000',GradientType=1 ); /* IE6-9 */
}
hr:before {
content: "";
display: block;
border-top: solid 1px #f9f9f9;
width: 100%;
height: 1px;
position: absolute;
top: 50%;
z-index: 1;
}