<svg class="facebook_logo" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0 0 312 312">
<path d="M288,176v-64c0-17.664,14.336-32,32-32h32V0h-64c-53.024,0-96,42.976-96,96v80h-64v80h64v256h96V256h64l32-80H288z"/>
</svg>

.facebook_logo {
    width: 50%;
    height: 50%;
    padding: 12px;
    fill: #ffffff;
    background: #2f3c4d;
    border-radius: 10px;
    cursor: pointer;
    transform: translate(100px, -100px);
}