.center {
  text-align: center;
  max-width: 3in;
  margin: 12px auto;
}

.custom-gauge.wj-gauge {
  height: 100px;
}
.custom-gauge.wj-gauge .wj-face path {
    fill: #d0d0d0;
    stroke: none;
}
.custom-gauge.wj-gauge .wj-pointer path {
    fill: #404040;
    stroke: none;
}
.custom-gauge.wj-gauge circle.wj-pointer {
    fill: #404040;
    stroke: none;
}
.custom-gauge.wj-gauge.wj-state-focused circle.wj-pointer {
    stroke: orange;
    stroke-width: 4px;
}