.card {
    border: 1px solid gray;
    padding: 0.5em;
    margin: 1em 0;
    border-radius: 5px;
    background: #333;
}

body {
    padding-top: 20px;
    padding-bottom: 40px;
}

/* Custom container */
.container-narrow {
    margin: 0 auto;
    max-width: 700px;
}
.container-narrow > hr {
    margin: 30px 0;
}

/* Main marketing message and sign up button */
.jumbotron {
    margin: 60px 0;
    text-align: center;
}

.jumbotron h1 {
    font-size: 72px;
    line-height: 1;
}

.jumbotron .btn {
    font-size: 21px;
    padding: 14px 24px;
}

.footer {
    text-align: center;
}

.card {
    display: none;
}

rect {
    fill: none;
    pointer-events: all;
}

.node {
    fill: #AAA;
}

.link {
    stroke: #999;
}

text {
    fill: #DDD;
}

.suggest {
    color: #888;
    font-size: 8pt;
}