body {
    margin: 40px auto;
    max-width: 700px;
    line-height: 1.6;
    font-size: 18px;
    color: #454545;
    padding: 0 10px
}

h1,h2,h3 {
    line-height: 1.2
}

section {
    margin-bottom: 1.5em;
}

.center-block {
    display: block;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: 5px;
}

#gen-area canvas {
    border: dotted;
}

#gen-area {
    display: none;
}