1. Headers :
h1, h2, h3, h4, h5, h6 are the headers in which h1 is the largest header(in font) and h6 is the smallest
examples:
2. Paragraph:
p tag is used for paragraphs and broswers erases the extra spaces and lines while displaying .
To keep the extra space and line we can use the pre tag
You will find all the code and link to learn HTML5 forms