JSFiddle - React, Tailwind, and code Playground

HTML

<hr>

CSS

hr{
    border:none;
    height:1px;
    
   background: -moz-linear-gradient(left, rgba(30,87,153,0) 0%, rgba(30,87,153,0.02) 1%, rgba(0,0,0,1) 50%, rgba(30,87,153,0) 100%); /* FF3.6+ */
background: -webkit-gradient(linear, left top, right top, color-stop(0%,rgba(30,87,153,0)), color-stop(1%,rgba(30,87,153,0.02)), color-stop(50%,rgba(0,0,0,1)), color-stop(100%,rgba(30,87,153,0))); /* Chrome,Safari4+ */
background: -webkit-linear-gradient(left, rgba(30,87,153,0) 0%,rgba(30,87,153,0.02) 1%,rgba(0,0,0,1) 50%,rgba(30,87,153,0) 100%); /* Chrome10+,Safari5.1+ */
background: -o-linear-gradient(left, rgba(30,87,153,0) 0%,rgba(30,87,153,0.02) 1%,rgba(0,0,0,1) 50%,rgba(30,87,153,0) 100%); /* Opera 11.10+ */
background: -ms-linear-gradient(left, rgba(30,87,153,0) 0%,rgba(30,87,153,0.02) 1%,rgba(0,0,0,1) 50%,rgba(30,87,153,0) 100%); /* IE10+ */
background: linear-gradient(to right, rgba(30,87,153,0) 0%,rgba(30,87,153,0.02) 1%,rgba(0,0,0,1) 50%,rgba(30,87,153,0) 100%); /* W3C */
filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#001e5799', endColorstr='#001e5799',GradientType=1 ); /* IE6-9 */
}