body {
    background-color: pink;
    margin: 0;
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    width: 100vw;
}
.button-container {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    height: 100%;
}
button {
    border: none;
    cursor: pointer;
    background-color: hotpink;
    opacity: 1;
    width: 200px;
    height: 200px;
    line-height: 200px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    border-radius: 50%;
    transition: transform 0.2s, box-shadow 0.2s;
}
button:hover {
    box-shadow: 0 40px 80px rgba(255, 20, 147, 0.5);
}
button:active {
    transform: translateY(2px);
    box-shadow: 0 3px 10px rgba(255, 20, 147, 0.5);
}