.link{
color: #e84118;
font-family: 'Viga', sans-serif;
font-size: 18px;
font-weight: 300;
line-height: 18px;
text-transform: uppercase;
letter-spacing: 1px;
display: inline-block;
position: relative;
z-index: 1;
transition: all 0.5s ease 0s;
}
.link:focus,
.link:hover{
color: #fff;
}
.link:before{
content: "";
background: #353535;
padding: 18%;
border-radius: 50%;
position: absolute;
transform: translate3d(-50%, -50%, 0) scale(0);
top: 50%;
left: 50%;
z-index: -1;
transition: all .3s cubic-bezier(1, 0.15, 0.34, 1.03);
}
.link:hover:before{ transform: translate3d(-50%, -50%, 0) scale(3); }
@media only screen and (max-width: 767px){
.link{ margin-bottom: 30px; }
}