.email-span {
    text-align: center;
}

.email-span span {
    display: block;
    font-size: small;
    margin: 0 auto;
}

.social-links li i {
    transition-duration: .15s;
    transition-timing-function: cubic-bezier(0.4, 0.0, 0.2, 1);
    background: initial;
    border-radius: 4px;
    transition-property: transform;
}

.social-links li i:hover {
    /*background: #4285f4;*/
    transform: scale(2);
}