JSFiddle - React, Tailwind, and code Playground

HTML

<div class="button">
  Click Me!
</div>

CSS

.button {
  
  width: 200px;
  height: 30px;
  
  margin: 50px;
  
  color: #C0C0C0;
  background: linear-gradient(to left, #F8F8F8, transparent 30%);
  background-color: #808080;
  
  text-align: center;
  font-family: sans-serif;
  
  cursor: pointer;
  
  padding-top: 10px;
  transition: background-color 500ms;
}

  .button:hover {
    
    background-color: #A0A0A0;
  }