element-details - web component using <template> and <slot>
    
      
      
        
          
            <NEED NAME>
            NEED DESCRIPTION
          
        
        
       
      
    
    
      slot
      A placeholder inside a web
        component that users can fill with their own markup,
        with the effect of composing different DOM trees
        together.
      
        - name
 
        - The name of the slot.
 
      
    
    
      template
      A mechanism for holding client-
        side content that is not to be rendered when a page is
        loaded but may subsequently be instantiated during
        runtime using JavaScript.
    
    
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