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

.x.axis path {
  display: none;
}

.line {
  fill: none;
  stroke: steelblue;
  stroke-width: 1.5px;
}

.grid .tick {
    stroke: lightgrey;
    opacity: 0.7;
    stroke-width: 0.5px;
}
.grid path {
      stroke-width: 0;
}

.tick {
  font-size: 12px;
}

#graphWarning {
  width: 100%;
  padding: 10px;
  margin-top: 10px;
  margin-bottom: 10px;
  border: 1px solid gray;
  background-color: #FFFF66;
}