body{
    text-align: center;
    background-color: #000;
    color: white;
}
.btn-container{
    display: flex;
    justify-content: center;
}
.btn{
    background-color: rgb(43, 226, 104);
    height: 180px;
    width: 180px;
    border-radius: 20%;
    margin: 0.5rem;
    border: 3px solid #fff;
}
.red{
    background-color: #d95980;
}
.green{
    background-color: #63aac0;
}
.yellow{
    background-color: #f99b45;
}
.purple{
    background-color: #819ff9;
}
.gameflash{
    background-color: #fff;
}

.userflash{
    background-color: red;
}