body {
    height: 100vh;
    background: #111;
    display: flex;
    justify-content: center;
    align-items: center;
}

a {
    text-decoration: none;
    color: #FFF;
    font-family: roboto;
    font-size: 40px;
    /* border: 1px solid #5500FF; */
    font-weight: bold;
    letter-spacing: 0;
    padding: 10px 40px;
    position: relative;
    overflow: hidden;
    /* border-radius: 1px; */
    box-shadow: 4px 4px 0px 0px #330088;
    transition: all 0.3s;
}

a::before,
a::after{
    content: '';
    position: absolute;
    top: 4px;
    left: 4px;
    width: 100%;
    height: 100%;
    background: #5500FF;
    transition: all 0.3s;
    z-index: -1;
}
a::after{
    top: 0;
    left: 0;
    background: #330088;
    z-index: -2;
}

a:hover::before{
    top: 0;
    left: 0;
}
a:hover{
    box-shadow: 0 0 0px 0px #330088;
}