body {
    background-image: url(https://fun.kuvitamedia.com/assets/images.gif);
    background-size: cover;
  height: 100%;
  overflow: hidden;
    background-color:#030303;
    display: flex;
	justify-content: center;
	align-items: center;
    text-align: center;
    color:#fff;
  }
  
.block {
    display: block;
    width: 100%;
    border: none;
    background-color: #04AA6D;
    padding: 14px 28px;
    font-size: 16px;
    cursor: pointer;
    text-align: center;
  }
  
  * { color:#fff; text-decoration: none;}