var header = Cpage.component({
  name: 'header',
  components: [],
  template: `<div>{{header}}--{{height}}</div>`,
  data: {
    header: 'this is header'
  },
  props: {
    height: {
      default: '10'
    }
  },
  beforeRender() {
  },
  render() {
  }
});

<div>
  <div class="main" c-click="handelIf()">my app--templateId</div>
  <div c-if="{{ifTest}}">
    <article></article>
  </div>
   <header 
    height="{{headerHeight}}"
    c-click="headerClick()"
    ></header>
   <article></article> 
  <footer></footer> 
</div>