hubl/src/scss/_project.scss

#project-profile {
  [name='title'] {
    font-size: 1.5em;
    padding: .5em 0;
    margin-bottom: .5em;
    border-bottom: 1px solid grey;
    color: $pal-black;
    sib-display-div,
    div {
      display: inline;
    }
    sib-display-div[name='number'] {
      padding-right: 0.5em;
      &:before {
        content: '#';
      }
    }
  }
}