.center {
    display: block;
    margin-left: auto;
    margin-right: auto;
    width: 50%;
  }


  /* Hover Styles*/
  .icon-wrapper {
    display: inline-block;
    position: relative;
    width: 50px;
    height: 50px;
  }
  
  .icon {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: auto;
    transition: opacity 0.5s ease-in-out;
  }
  
  /* Initially, hide the colored version*/
  .hover-icon {
    position: absolute;
    top: 0;
    left: 0;
    opacity: 0;
  }
  
  /* Show the colored icon on hover */
  .icon-wrapper:hover .default-icon {
    opacity: 0;
  }
  .icon-wrapper:hover .hover-icon {
    opacity: 1;
  }
  