div.container div.box {
    margin-top: 10vh;
    display: flex;
    justify-content: space-around;
}
div.box a {
    padding: 5px;
    width: 75px;
    height: 75px;
    font-size: 50px;
    background-color: white;
    border-radius: 50%;
}
div.box a:hover {
    background-color: red;
    transition: transform .3s;
    -ms-transform: scale(1.1);
    -webkit-transform: scale(1.1);  
    transform: scale(1.2);
}
div.box a i {
    color: red;
}
div.box a i:hover {
    color: white;
}