* {
    margin: 0;
    padding: 0;
    list-style-type: none;
}

a, img {
    border: 0;
}

body {
    background: #eee;
}

.social-btns .btn,
.social-btns .btn:before,
.social-btns .btn .second-menu {
    transition: all 1s;
    /*transition-timing-function: cubic-bezier(0.31, -0.105, 0.43, 1.59);*/
}

.social-btns .btn:before {
    top: 0;
    left: -100%;
}

.social-btns .btn .second-menu {
    -webkit-transform: scale(0.8);
    transform: scale(0.8);
}

.social-btns .btn.second-fa-0:before {
    background-color: #3b5998;
}

.social-btns .btn.second-fa-0 .second-menu {
    color: #3b5998;
}

.social-btns .btn.second-fa-1:before {
    background-color: #00aff0;
}

.social-btns .btn.second-fa-1 .second-menu {
    color: #00aff0;
}

.social-btns .btn.second-fa-2:before {
    background-color: #dc4a38;
}

.social-btns .btn.second-fa-2 .second-menu {
    color: #dc4a38;
}

.social-btns .btn.second-fa-3:before {
    background-color: #bf00ff;
}

.social-btns .btn.second-fa-3 .second-menu {
    color: #bf00ff;
}

.social-btns .btn.second-fa-4:before {
    background-color: #cc0000;
}

.social-btns .btn.second-fa-4 .second-menu {
    color: #cc0000;
}

.social-btns .btn:focus:before,
.social-btns .btn:hover:before {
    top: 0;
    left: 0;
}

.social-btns .btn:focus .second-menu,
.social-btns .btn:hover .second-menu {
    color: #fff;
    -webkit-transform: scale(1);
    transform: scale(1);
}

.social-btns {
    width: 100%;
    margin: auto;
    font-size: 0;
    text-align: center;
    margin-top: 3%;


}

.social-btns .btn {
    display: inline-block;
    background-color: #fff;
    width: 15%;
    line-height: 40px;
    margin: 0 10px;
    text-align: center;
    position: relative;
    overflow: hidden;
    border-radius: 1%;
    border: 1px solid black;
    box-shadow: 0 5px 15px -5px rgba(0, 0, 0, 0.1);
    opacity: 0.99;
}

.social-btns .btn:before {
    content: "";
    width: 100%;
    height: 100%;
    position: absolute;
    /*-webkit-transform: rotate(45deg);*/
    /*transform: rotate(45deg);*/
}

.social-btns .btn .second-menu {
    font-size: 1.5rem;
    display: inline-block;
    /*vertical-align: middle;*/

}