0-styles.css

*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html, body {
    height: 100vh;
    font-weight: bold;
    font-size: 1.5rem;
}

ul {
    display: grid;
    place-items: center;
    list-style: none;
    height: 100vh;
    width: 100%;
    grid-template-columns: repeat(3, 1fr);
}

li {
    border: 2.5px solid #727272;
    background-color: #f7f7f7;
    border-radius: 10px;
    width: 300px;
    height: 550px;
    display: grid;
    place-items: center;
    grid-template-rows: 1fr 2.5fr;
}

span {
    height:  100%;
    width: 220px;
    padding: 50px;
}

span.i-html {
    background: url('0-sprite.png') no-repeat -30px -40px;
}

span.i-css {
    background: url('0-sprite.png') no-repeat -320px -40px;
}

span.i-js {
    background: url('0-sprite.png') no-repeat -610px -40px;
}