.icon {
    line-height: 1;
    font-size: 0;
}
.icon::before {
    font-family: FontAwesome;
    color: #000;
    font-size: 16px;
}
.icon--phone::before {
    content: '\f095';
}
.icon--email::before {
    content: '\f0e0';
}
.icon--heart::before {
    content: '\f004';
}