blockscout/apps/block_scout_web/assets/css/_elements.scss

hr {
  border-bottom: none;
  border-left: none;
  border-right: none;
  border-top: 1px solid #f5f6fa;
  margin: 30px 0;
}

svg {
  -moz-osx-font-smoothing: grayscale;
  -webkit-font-smoothing: antialiased;
  display: inline-block;
  font-style: normal;
  font-variant: normal;
  text-rendering: auto;
  line-height: 1;
}

dl {
  margin-bottom: 12px;

  &:last-child {
    margin-bottom: 0;
  }

  dd {
    margin: 0;
  }
}