canvas.digital_sig_canvas,
canvas.sfwcf7_canvas {
    border: 2px dotted #ccc;
    display: block;
    max-width: 100%;
}

.dswcf7_digital_sig {
    margin-bottom: 16px;
}

.dswcf7_digital_sig .sfwcf7-sign {
    margin-top: 10px;
}