View source for Template:MainPageStyle.css

.cards {
  margin: 20px auto;
  width: 98%;
  height: 300px;
  display: grid;
  grid-template-columns: 50% 50%;
  grid-column-gap: 10px;
  grid-row-gap: 10px;
  justify-content: center;
  a {
    background: url("https://bridgeduel.xyz/images/redclay.png") center center repeat;
    background-size: 50px;
    transition-duration: 0.2s;
    filter: brightness(80%);
    transition-property: transform, filter;
    font-size: 20px;
    text-align: center;
    vertical-align: middle;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
  }
  a:hover {
    transform: scale(1.01);
    filter: brightness(100%); 
  }
}