ok.css

.example {
    position: relative;
    margin-top: 0%;
    padding: 0;
    width: 1000px;
    display: block;
    cursor: pointer;
    overflow: hidden;
    margin-left: 33%;
  }
  .content {
    border-radius: 50%;
    opacity: 0;
    font-size: 35px;
    position: absolute;
    top: 18.3%;
    left: 18.73%;
    color: rgba(51, 125, 157, 0.928);
    background-color: rgba(255, 255, 255, 0.954);
    width: 630px;
    height: 630px;
    -webkit-transition: all 400ms ease-out;
    -moz-transition: all 400ms ease-out;
    -o-transition: all 400ms ease-out;
    -ms-transition: all 400ms ease-out;
    transition: all 400ms ease-out;
    text-align: center;
    font-family: Verdana, Geneva, Tahoma, sans-serif;
    font-weight: bold;
  }
  .example .content:hover {
    opacity: 1;
  }
  .example .content .text {
    height: 0;
    opacity: 1;
    transition-delay: 0s;
    transition-duration: 0.4s;
  }
  
  .example .text {
    padding-top: 0%;
    padding-left: 7%;
    padding-right: 7%;
    margin-top: -25%;
  }
  
  .example .text a:link{
    color:rgb(149, 184, 196);
  }
  
  .example .text a:visited{
    color:rgb(149, 184, 196);
  }
  
  .example .text a:hover {
    color: gray;
  }
  
  .example .content:hover .text {
    opacity: 1;
    transform: translateY(250px);
    -webkit-transform: translateY(250px);
  }