style.css

@import url('https://fonts.googleapis.com/css2?family=Chilanka&display=swap');

html {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    font-family: 'Chilanka', cursive, sans-serif;
    background:
        radial-gradient(black 15%, transparent 16%) 0 0,
        radial-gradient(black 15%, transparent 16%) 8px 8px,
        radial-gradient(rgba(255, 255, 255, .1) 15%, transparent 20%) 0 1px,
        radial-gradient(rgba(255, 255, 255, .1) 15%, transparent 20%) 8px 9px;
    background-color: #282828;
    background-size: 16px 16px;
}

ul {
    position: relative;
    display: flex;
    transform: rotate(-20deg) skew(20deg);
    transform-style: preserve-3d;
}

ul li {
    position: relative;
    list-style: none;
    margin: 0px 40px;
}

button {
    font-family: 'Chilanka', cursive, sans-serif;
    padding: 10px;
    width: 130px;
    height: 130px;
    border: none;
    outline: none;
    cursor: pointer;
    border-radius: 10px;
    background-color: #282828;
}

button span {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    background: #282828;
    justify-content: center;
    align-items: center;
    color: #fff;
    text-shadow: 0px 5px 5px black;
    font-size: 1.5rem;
    transition: 1.5s ease-out;
    border-radius: 10px;
}

button:hover span {
    z-index: 1000;
    transition: .3s;
    color: #fff;
    box-shadow: -1px 1px 1px rgba(0, 0, 0, .5);
}

button:hover span:nth-child(5) {
    transform: translate(40px, -40px);
    opacity: 1;
}

button:hover span:nth-child(4) {
    transform: translate(30px, -30px);
    opacity: .8;
}

button:hover span:nth-child(3) {
    transform: translate(20px, -20px);
    opacity: .6;
}

button:hover span:nth-child(2) {
    transform: translate(10px, -10px);
    opacity: .4;
}

button:hover span:nth-child(1) {
    transform: translate(0px, 0px);
    opacity: .2;
}

ul li:nth-child(1):hover span {
    background: #88d1af;
}

ul li:nth-child(2):hover span {
    background: #d9dd9b;
}