this p tag has “class” attribute with value “iota”.

this p tag no attribute. All p tags with “class” attribue will have blue text. All p tags with “class” attribute whose value is “whit” will get border. All p tags with “class” attribute and whose value has “pp” as one of its field will get a pink background.

this p tag has “class” attribute with value “whit”.

this p tag has “class” attribute with value “aa bb”.

this p tag has “class” attribute with value “aa pp”.