body {
    height: 100vh;
    display: flex;
    flex-direction: row;
    justify-content: space-around;
    flex-wrap: wrap;
    align-items: center;
    font-family: 'Courier New', Courier, monospace;
}

.box {
    min-width:  20vw;
    min-height: 20vh;
    transition: 0.5s;
}

.yellow {
    background-color: yellow;
}

.red {
    background-color: red;
}

.green {
    background-color: green;
}

.blue {
    background-color: blue;
}

.box:hover {
    border-radius: 24px;
    box-shadow: 0 10px 10px 0 rgba(0, 0, 0, 0.1);
    transform:scale(1.1);
}

span {
    font-weight: 800;
}


@media (max-width: 768px) 
{
    .box {
        width: 100vw;
    }
}