body{
    display: flex;
    justify-content: center;
    align-items: center;
    height: 80vh;
}
.stopwatch{
    height: 250px;
    width: 600px;
    border-radius: 12px;
    border: 2px solid black;
    text-align: center;
}
h1{
    font-size: 50px;
}
button{
    height: 50px;
    width: 150px;
    border: 1px solid black;
    border-radius: 10px;
    font-size: 20px;
    cursor: pointer;
}
.buttons{
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}