app/assets/stylesheets/social-share.css
.social-share-button a{
display: inline-block;
width: 75px;
height: 75px;
margin-top: 5%;
}
.social-share-button-facebook {
background: url("http://res.cloudinary.com/dud0a5two/image/upload/v1447684756/facebook.png") no-repeat;
}
.social-share-button-google_plus {
background: url("http://res.cloudinary.com/dud0a5two/image/upload/v1447684759/google-plus.png") no-repeat;
}
.social-share-button-twitter {
background: url("http://res.cloudinary.com/dud0a5two/image/upload/v1447684773/twitter.png") no-repeat;
}
.social-share-button-pinterest {
background: url("http://res.cloudinary.com/dud0a5two/image/upload/v1447684762/pinterest.png") no-repeat;
}