body {
    text-align: center;
    background-color: rgb(11, 32, 61);
}

h1 {
    color: antiquewhite;
    box-shadow: 0 0 10px rgb(101, 182, 233);
}

h2, h3 {
    color: antiquewhite;
}

.btn {
    height: 200px;
    width: 200px;
    border-radius: 20%;
    border: 3px solid black;
    margin: 2rem;
}

.btn-container {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.line-one, .line-two {
    display: flex;
    justify-content: center;
}

#pink {
    background-color: rgb(240, 86, 143);
    box-shadow: 0 0 20px rgb(101, 182, 233);
}

#green {
    background-color: rgb(37, 208, 123);
    box-shadow: 0 0 20px rgb(101, 182, 233);
}

#yellow {
    background-color: rgb(242, 237, 102);
    box-shadow: 0 0 20px rgb(101, 182, 233);
}

#blue {
    background-color: rgb(135, 225, 255);
    box-shadow: 0 0 20px rgb(101, 182, 233);
}

button {
    border-radius: 50%;
    height: 60px;
    width: 60px;
    border: 2px solid black;
    background-color: rgb(63, 163, 217);
    box-shadow: 0 0 4px rgb(101, 182, 233);
    font-size: larger;
}

.gameflash {
    background-color: whitesmoke !important;
    box-shadow: 0 0 90px goldenrod !important;
}

.userflash {
    background-color: whitesmoke !important;
    box-shadow: 0 0 90px rgb(212, 5, 133) !important;
}