gitlab-org--gitlab-foss/app/assets/stylesheets/pages/runners.scss

.runner-state {
  padding: 6px 12px;
  margin-right: 10px;
  color: #fff;

  &.runner-state-shared {
    background: #32b186;
  }
  &.runner-state-specific {
    background: #3498db;
  }
}

.runner-status-online {
  color: green;
}

.runner-status-offline {
  color: gray;
}

.runner-status-paused {
  color: red;
}

.runner {
  .btn {
    padding: 1px 6px;
  }

  h4 {
    font-weight: normal;
  }
}