【HTML】Intermediate1：Span&Div

1.HTML is all bout applying meaning to content.

    The span & div tags apply no meaning at all=meaningless tags

    They are used quite extensively in conjunction with CSS.

    Group together a chunk of HTML and hook some information onto that chunk,with attributes class & id to associate the element with class or id CSS selector.

2.

span-in-line

div-block-line:having a line-break before and after it