.w3-social-button{
    display: inline-grid;
    position: fixed;
    bottom: 20px;
    right: 19px;
    min-width: 45px;
    text-align: center;
    z-index: 99999;
    transition: all 200ms ease-in-out;
}
@media (min-width: 850px){
    .w3-social-button-active{
        bottom: 70px;
        transition: all 200ms ease-in-out;
    }
}
.w3-social-button img{
    width: 100%;
    /*filter: grayscale(100%);*/
}
.w3-social-button img:hover{
    width: 100%;
    filter: grayscale(0);
}
.w3-social-button-item, .w3-social-button-main{
    height: 45px;
    width: 45px;
    border-radius: 45px;
    transition: all 200ms ease-in-out;
    opacity: 1;
}
.w3-social-button-item{
    margin-top: -100%;
    margin-bottom: -20px;
    visibility: hidden;
    opacity: 0;
}
.w3-social-button-item:hover, .w3-social-button-main:hover{
    box-shadow: 0 0 20px 3px rgba(183, 193, 183, 0.78);
    opacity: 1;
}
.w3-social-button-item-active{
    transition: all 200ms ease-in-out;
    margin-top: 0;
    margin-bottom: 10px;
    visibility: inherit;
    opacity: 1;
}