HTML tips you won't see in most tutorials.
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1. The `loading=lazy` attribute
You can use the `loading=lazy` attribute to defer the loading of the image until the user scrolls to them.
2. Use the `<datalist>` element to create native HTML autocomplete.
3. Email, call, and SMS links:
4. Ordered lists `start` attribute.
Use the `start` attribute to change the starting point for your ordered lists.
5. Use `<input type="reset">` to create clear button for your forms.
6. The `meter` element
You can use the `<meter>` element to display quantities. No JavaScript/CSS is needed.
7. `window.opener`
Pages opened with `target="_blank"` allow the new page to access the original’s `window.opener`. This can have security and performance implications. Include `rel="noopener"` or `rel="noreferrer"` to prevent this.
8. Base Element
If you want to open all links in the document in a new tab, you can use <base> element:
9. Favicon cache busting
To refresh your website’s favicon you can force browsers to download a new version by adding ?v=2 to the filename.
This is especially helpful in production to make sure the users get the new version.
10. Native HTML sliders
You can use `<input type="range">` to create sliders.
11. HTML Accordion
You can use the `details` element to create a native HTML accordion.
12. `mark` tag
You can use the `<mark>` tag to highlight text.
13. Use the `type="search"` for your search inputs and you get the "clear" button for free.
14. `download` attribute
You can use the `download` attribute in your links to download the file instead of navigating to it.
15. Performance tip
Use the `.webp` image format to make images smaller and boost the performance of your website.
16. Use the `poster` attribute to specify an image to be shown while the video is downloading, or until the user hits the play button.
17. Use the `spellcheck` attribute to define whether the element may be checked for spelling errors.
18. Use the `<optgroup>` element to create a grouping of options within a `<select>` element.
19. You can use the `<fieldset>` element to group several controls as well as labels (`<label>`) within a web form.
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