.sic-wrapper {
    max-width: 600px;
    margin: auto;
    text-align: center;
}
#canvas {
    max-width: 100%;
    border: 1px solid #ccc;
    margin: 10px 0;
}
button {
    padding: 10px 20px;
    color: #fff;
    border: none;
    margin: 5px;
    cursor: pointer;
    border-radius: 5px;
}