.signature-pad {
    position: relative;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -ms-flex-direction: column;
    flex-direction: column;
    font-size: 10px;
    width: 100%;
    height: 100%;
    max-width: 700px;
    max-height: 400px;
    border: 1px solid #e8e8e8;
    background-color: #fff;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.27), 0 0 40px rgba(0, 0, 0, 0.08) inset;
    border-radius: 4px;
    padding: 16px;
}

.signature-pad::before,
.signature-pad::after {
    position: absolute;
    z-index: -1;
    content: '';
    width: 40%;
    height: 10px;
    bottom: 10px;
    background: transparent;
    box-shadow: 0 8px 12px rgba(0, 0, 0, 0.4);
}

.signature-pad::before {
    left: 20px;
    -webkit-transform: skew(-3deg) rotate(-3deg);
    transform: skew(-3deg) rotate(-3deg);
}

.signature-pad::after {
    right: 20px;
    -webkit-transform: skew(3deg) rotate(3deg);
    transform: skew(3deg) rotate(3deg);
}

.signature-pad--body {
    position: relative;
    -webkit-box-flex: 1;
    -ms-flex: 1;
    flex: 1;
    border: 1px solid #f4f4f4;
    border-radius: 4px;
}

.signature-pad--body.empty {
    background-color: #333;
}

.signature-pad--body canvas {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    border-radius: 4px;
    box-shadow: 0 0 5px rgba(0, 0, 0, 0.02) inset;
}

.signature-pad--footer {
    color: #c3c3c3;
    text-align: center;
    font-size: 1.2em;
    margin-top: 8px;
}

.signature-pad--actions {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-pack: justify;
    -ms-flex-pack: justify;
    justify-content: space-between;
    margin-top: 8px;
}

.signature-pad--actions .column {
    padding: 0.1em;
}

.signature-pad--actions .button {
    margin: 0.2em;
}

@media (max-width: 480px) {
    .signature-pad--actions .button {
        display: block;
        width: 100%;
        min-height: 2em;
    }
}