weebsweeper/src/index.css

body {
    background-color: #555;
}

.square {
    float: left;
    width: 40px;
    height: 40px;
    line-height: 40px;
    font-size: 15px;
    font-weight: 1000;
    padding: 0;
    background-size: cover;
}

.game {
    display: flex;
    position: fixed;
    top: 50%;
    left: 50%;
    min-width: 320px;
    transform: translate(-50%, -50%);
}

.covered {
    border: 2px dotted #888;
    background-color: #666;
}

@keyframes coveredAnim {
    from {background-color: #666; border: 2px dotted #888;}
    to {background-color: transparent; border: 0px none;}
}


.covered-win {
    border: 2px dotted #888;
    background-color: transparent;
    animation-name: coveredAnim;
    animation-duration: 10s;
}

.uncovered {
    border: 0px none;
    color: #fff;
    background-color: #888;
}

@keyframes uncoveredAnim {
    from {background-color: #888; color: #fff;}
    to {background-color: transparent; color: transparent;}
}

.uncovered-win {
    border: 0px none;
    color: transparent;
    background-color: transparent;
    animation-name: uncoveredAnim;
    animation-duration: 10s;
}

.nun {
    background-image: url('https://img2.gelbooru.com//samples/69/d4/sample_69d43b8deae19ac8e6377d1bd0c7ad16.jpg');    
}

.cross {
    background-size: 75%;
    background-position: center center;
    background-repeat: no-repeat;
    background-image: url('/weebsweeper/cross.svg');
}

@keyframes jesusAnim {
  from {background-size: 0% 0%;}
  to {background-size: 100% 100%;}
}

.jesus {
    min-width: 400px;
    min-height: 400px;
    background-repeat: no-repeat;
    background-size: 100% 100%;
    background-position: center center;
    background-image: url('/weebsweeper/jesus.jpg');
    animation-name: jesusAnim;
    animation-duration: 10s;
    animation-timing-function: ease-in;
}