A free app for Android, by 808 Apps Maui.
This app contains all the important HTML tags and attributes. The description for each element includes the HTML tag, its attributes, the value, and the example (if available).
The value is always shown in the code for each tag. The tag information is presented in the form of an easy-to-understand table.
The HTML tags are grouped by category and attribute, and the categories are arranged in the form of a tree.
In addition to the description for each element, there is a list of all the elements that contain a given attribute. This list is presented in the form of a table. Each row of the table contains the value of the attribute for the element, the name of the attribute, and the type of the element.
The HTML tags are categorized into six main categories:
1) Structural elements
2) Head elements
3) List elements
4) Text formatting elements
5) Form elements
6) Image and media elements
This app is a reference for the latest version of HTML5. As the HTML5 specification progresses towards approval, this app will follow those changes and evolve towards the HTML5 spec.
This app is free to use.