body {
  font-family: 'Roboto Slab', serif;
  font-weight: 300;
  margin:50px 0px; padding:0px;
}

h1, h2, h3, h4, h5 {
  text-align: center;
}

main {
  width: 900px;
  margin: 0px auto;
}

.x.axis path, .x.axis line{
  fill: none;
  stroke: black;
}

.slider {
  margin-left: 13px;
  width: 852px;
}

.scale {
  height: 30px;
  margin-bottom: 30px;
  font-size: 13px;
}

.countries {
  fill: none;
  stroke: #fff;
  stroke-linejoin: round;
}

.currentYear {
  font-size: 25px;
}

.legend {
  font-size: 12px;
}

rect {
  stroke-width: 2;
}

hr {
  margin-top: 30px;
}