@adobe/spectrum-css/dist/components/rule/index.css

The Spectrum CSS top-level backwards compatible package

.spectrum-Rule {
  width: 100%;
  overflow: visible;

  border: none;
  border-width: 2px;
  border-radius: 2px;
}
.spectrum-Rule--large {
  height: 4px;

  border-radius: 2px;
}
.spectrum-Rule--medium {
  height: 2px;

  border-radius: 1px;
}
.spectrum-Rule--small {
  height: 1px;

  border-radius: 1px;
}
.spectrum-Rule--vertical {
  height: 100%;
}
.spectrum-Rule--vertical.spectrum-Rule--large {
    width: 4px;
  }
.spectrum-Rule--vertical.spectrum-Rule--medium {
    width: 2px;
  }
.spectrum-Rule--vertical.spectrum-Rule--small {
    width: 1px;
  }