body {
    text-align: center;
}

.btn {
    height: 200px;
    width: 200px;
    border: 10px solid black;
    border-radius: 20%;
    margin: 1.2rem;
}

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

.red {
    background-color: red;

}

.blue {
    background-color: #065084;
}

.teal {
    background-color: #0F828C;
}

.yellow {
    background-color: #E67514;
}

.flash {
    background-color: white;
}

.userFlash {
    background-color: indigo;
}