Answers for "what is the use of span tag in html"

span tag

The <span> tag is an inline container used to mark up a part of a text,
 or a part of a document. The <span> tag is easily styled by CSS or manipulated
 with JavaScript using the class or id attribute. The <span> tag is much like 
the <div> element, but <div> is a block-level element and <span> is an inline 
element.   :)