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

#weights form {
  margin: auto;
  text-align: center;
}

#weights .graph-period div {
  display: inline-block;
  vertical-align: middle;
  min-width: 6em;
}
#weights svg {
  clear: left;
}