th, td {
    padding: 1em;
}

.axis path,
.axis line {
    fill: none;
    stroke: #000;
    shape-rendering: crispEdges;
}

.x.axis path {
    display: none;
}

#circle circle {
    fill: none;
    pointer-events: all;
}

.group path {
    fill-opacity: .5;
}

path.chord {
    stroke: #000; stroke-width: .25px;
}

#circle:hover path.fade {
    display: none;
}

#matrix {
    margin-left: 8em;
}

.d3-tip {
    background: white;
    color: black;
    padding: 0.5em;
}