Detailed explanation of HTML5 lang attribute and dir attribute_Basic knowledge

1: The lang attribute is used to specify the attribute value of the element and the base language used by the element's content text . The default value is unknown. However, whether it is applicable to the attribute also depends on the syntax and semantics of the attribute, as well as the volume Input operation
When the user browser renders an HTML document, the benefits of this attribute are as follows:
(1) Assist search engines
(2) Assist in speech synthesis
(3) Assist in selecting symbol variants for high-quality printing
(4) Assist in selecting a set of quotation marks
(5) Assist in resolving hyphens, bindings and spaces
(6) Assist with spelling and grammar checking
2: Text direction attribute dir

Copy code The code is as follows:

Farewell to Xin Jian at Furong Tower

Wang Changling

The cold and rainy night entered Wu,< /bdo>

Pingming sees off guests Chu Shangu.

If relatives and friends in Luoyang ask each other, < /p>

A piece of ice is in the jade pot.

RTL: Display from right to left