data-
Custom data attributes are intended to store custom data private to the page or application, for which there are no more appropriate attributes or elements. 3.2.5.7. Embedding custom non-visible data with the data-* attributes
Links about data-
A Complete Guide to Data Attributes | CSS-Tricks
Everything you ever wanted to know about data attributes in HTML, CSS, and JavaScript.
Code sample
<h3 data-author-id="bob">
Bob
</h3>Explore other pages
- lch()
LCH has the same L axis as Lab, but uses polar coordinates C (chroma) and H (hue).
- aria-label
Defines a string value that labels the current element.
- grid-template-columns
Specifies the track list for the grid’s columns.
- line-height
Specifies the height that is used in the calculation of the line box height.