body{
    text-align: center;
}

#startBtn {
    background-color: #28a745;  
    color: white;
    border: none;
    border-radius: 4px;
}

#restartBtn {
    background-color: #dc3545;   
    color: white;
    border: none;
    border-radius: 4px;
}

#startBtn:hover {
    background-color: #218838;
}

#restartBtn:hover {
    background-color: #c82333;
}

.btn-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    margin: 20px 0;
}

h1, h2 {
    text-align: center;
}

.btn{
    height:200px;
    width:200px;
    border-radius: 20%;
    border: 10px solid black;
    margin:2.5rem;
}

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

.yellow{
    background-color: #f99b45;
}
.red{
    background-color: #d95980;
}
.purple{
    background-color: #819ff9;
}
.green{
    background-color: #63aac0;
}

.flash{
    background-color: white;
}

.userflash{
    background-color: green;
}