style.css

/* Configure the layout for automatically resizing canvas */
html,
body,
#graph {
    height: 100%;
    width: 100%;
    margin: 0;
    overflow: hidden;
}

/* Stylize a documentation label */
#read_more {
    display: block;
    position: absolute;
    border-radius: 5px 5px 0 0;

    background: rgba(255, 255, 255, .1);

    padding: 2px 5px;

    bottom: 0;
    left: 50%;
    transform: translate(-50%, 0%);

    pointer-events: none;
}

#read_more a {
    font-family: 'Roboto', sans-serif;
    font-size: 1.2em;
    pointer-events: all;
    text-decoration: none;

    color: rgba(255, 255, 255, 0.6);
    text-shadow: 1px 0px 1px rgb(238 238 238 / 50%);
    transition: all 0.4s ease;
}

#read_more a:hover {
    color: rgba(255, 255, 255, 1.0);
    text-shadow: 1px 0px 1px rgb(255 255 255 / 80%);
}

#read_more a:visited {
    color: #ccc;
}