JSFiddle - React, Tailwind, and code Playground

HTML

<input class="runInput" onclick="runCode();" type="button" value="Run">

CSS

/*Buttons/Inputs*/
                    
.runInput {
   border-top: 1px solid #ffffff;
   background: #001cbd;
   background: -webkit-gradient(linear, left top, left bottom, from(#148bfa), to(#001cbd));
   background: -webkit-linear-gradient(top, #148bfa, #001cbd);
   background: -moz-linear-gradient(top, #148bfa, #001cbd);
   padding: 6.5px 13px;
   -webkit-border-radius: 12px;
   -moz-border-radius: 12px;
   border-radius: 12px;
   -webkit-box-shadow: rgba(0,0,0,1) 0 1px 0;
   -moz-box-shadow: rgba(0,0,0,1) 0 1px 0;
   box-shadow: rgba(0,0,0,1) 0 1px 0;
   text-shadow: rgba(0,0,0,.4) 0 1px 0;
   color: #ffffff;
   font-size: 24px;
   font-family: Helvetica, Arial, Sans-Serif;
   text-decoration: none;
   vertical-align: middle;
   }
.runInput:hover {
   background: #001cbd;
   color: #d9d9d9;
   }
.runInput:active {
   background: #00046e;
}
.runInput:focus {
   outline:none;
}