JSFiddle - React, Tailwind, and code Playground

HTML

<div class="formLink">Download</div>
<div class="btn">Button 2</div>

CSS

body{
  background-color: blue;
}

.formLink, .formLink:after {
    position: relative;
    text-align: center;
    display: inline-block;
    background: linear-gradient(to right,#e82171,#ef3e36);
    padding: 24px 40px;
    border-radius: 100px;
    -webkit-border-radius: 100px;
    -moz-border-radius: 100px;
    font-size: 18px;
    color: #fff;
    text-decoration: none;
    cursor: pointer;
    font-weight: 900;
    transition: all .6s;
    background: -moz-linear-gradient(to right,#e82171,#ef3e36);
    background: -webkit-linear-gradient(to right,#e82171,#ef3e36);
    background: -o-linear-gradient(to right,#e82171,#ef3e36);
    background: linear-gradient(to bottom, #e82171, #ef3e36);
      background-repeat: repeat-x;
      background-repeat: repeat-y;
      background-size: 100%;
      background-position: 0 100% no-repeat;
      -webkit-transition: all 0.6s linear;
         -moz-transition: all 0.6s linear;
           -o-transition: all 0.6s linear;
              transition: all 0.6s linear;
}

.formLink:after {
  content: "Download";
  position: absolute;
  left: 0;
  top: 0;
}

.formLink:hover:after {
    box-shadow: 0 0 20px #fff;
    background: #404262;
    background-position: 0 0;
}


/*************/

/** BUTTON 2 **/ 

.btn {
    display: inline-block;
    padding: 20px;
    border-radius: 100px;
    text-align: center;
    border: 0;
    cursor: pointer;
    transition: all 0.6s;
    color: #ffffff;
    outline: none;
    background: #E82171;
    font-size: 90%;
}
.btn:hover {
    box-shadow: 0 0 20px #ffffff;
    background: #404262;
}