CSS

scss a link style

a{
    &:link{
        color: white;
        &:visited{
            color: grey;
            text-decoration: none;
            opacity: 0.42;
        }
    }
    &:hover{
        opacity: 0.7;
        text-decoration: underline;
    }
    &:active{
        opacity: 1;
        text-decoration: none;
    }
}