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

a {
    text-decoration: none;
    color: #262626;
    font-family: roboto;
    font-size: 40px;
    border: 5px solid #5500FF;
    font-weight: 300;
    letter-spacing: 0;
    padding: 40px 80px;
    position: relative;
    transition: color 800ms 200ms;
    overflow: hidden;
    transition: all 1s;
    border-radius: 10px;
}

a:before,
a:after {
    content: '';
    position: absolute;
    top: 0px;
    width: 25%;
    height: 100%;
    background: #5500FF;
    border-radius: 100%;
    transform: translate3d(0, 150%, 0) scale(1.8);
    transition: all 0.45s;
    z-index: -1;
    box-shadow: 50px 15px 0px 0px #5500FF;
}

a:before {
    left: 0;
}

a:after {
    top: 80px;
    right: 20%;
}

a:hover::before,
a:hover::after {
    transform: translateZ(0) scale(1.8);
    top: 0;
    box-shadow: 50px 0 0px 0px #5500FF;

}