body {
    background-color: #000;
}

.div__btn {
    width: 100%;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn {
    color: #fff;
    background-color: #000;
    padding: 20px 30px;
    border: 4px solid #ebd916;
    border-radius: 18px;
    font-size: 1.2rem;
    transition: 200ms;
}

.btn:hover {
    box-shadow: 0px 0px 30px #ebd916;
    cursor: pointer;
}