div{
    text-align: center;
}
p{
    text-align: center;
    font-size: 12px;
}
canvas{
    text-align: center;
}
#textarea{
    background-color: white;
    border: solid black;
}
#ok{
    margin: 10px;
    border: midnightblue;
    background-color: midnightblue;
    border-radius: 5px;
    padding: 5px 2em;
    font-weight: bold;
    font-size: 20px;
    color: white;
}
#ng{
    margin: 10px;
    border: rgb(255, 38, 0);
    background-color: rgb(255, 38, 0);
    border-radius: 5px;
    padding: 5px 2em;
    font-weight: bold;
    font-size: 20px;
    color: white;
}
#start{
    margin: 10px;
    border: black;
    background-color: black;
    border-radius: 5px;
    padding: 5px 1em;
    font-weight: bold;
    font-size: 20px;
    color: white;
}