body {
    text-align: center;
}

.btn {
    height: 200px;
    width: 200px;
    border-radius: 20%;
    border: 5px solid black;
    margin: 2.5rem;
}

.btn-container {
    display: flex;
    justify-content: center;
}

.pink {
    background-color: rgb(217, 138, 152);
}

.yellow {
    background-color: rgb(238, 205, 54);
}

.green {
    background-color: rgb(86, 164, 86);
}

.purple {
    background-color: rgb(97, 40, 97);
}

.flash {
    background-color: #fff;
}

.userFlash {
    background-color: cadetblue;
}