HTML Tags, which does not require CSS or JS

(1) The <details> tag is used to create an interactive widget that the user can open and close. By default, the widget is closed. When open, it expands and displays the content within. The <summary> tag is used in conjunction with <details> to specify the details of a visible heading. 

 Here is an example:- <details> <summary>Loram Ipsum</summary> <p>Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum. </p> </details>

Output

Loram Ipsumis simply dummied

Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.

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(2) Tag <picture>
The <picture> tag gives you flexibility in specifying image resources. This tag is used in responsive designs. As it allows you to use multiple images of different sizes to nicely fill the browser viewport, so you don’t need to use one image that is scaled up or down based on the viewport width.
The <picture> element contains two tags: one or more <source> tags and one <img> tag.

Here is an example

<p>Resize the browser window to load different images.</p> <picture> <source media="(min-width:650px)" srcset="https://images.freeimages.com/images/large-previews/106/photographer-1464286.jpg"> <source media="(min-width:465px)" srcset="https://images.freeimages.com/images/large-previews/fd2/photographer-1436459.jpg"> <img src="https://images.freeimages.com/images/large-previews/579/my-camera-1-1435207.jpg" alt="Flowers" style="width:auto;"> </picture>

Output:

Resize the browser window to load different images.

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(3) Tag <template>
The <template> tag is a container to hold some HTML content hidden from the user. This hidden content can be displayed by Javascript.

Here is an example

<h1>The template Element</h1> <p>Click the button below to display the hidden content from the template element.</p> <button onclick="showContent()">Show hidden content</button> <template> <h2>Image</h2> <img src="https://images.freeimages.com/images/large-previews/106/photographer-1464286.jpg" width="214" height="204"> </template> <script> function showContent() { var temp = document.getElementsByTagName("template")[0]; var clon = temp.content.cloneNode(true); document.body.appendChild(clon); } </script>

The template Element

Click the button below to display the hidden content from the template element.