There are some words reserved in HTML which we cannot use directly. If you use Less Than (<) or Greater Than (>) then the browser may get some error in it and some words are not present on the keyboard like copyright sign (©). There are some such type of venom characters, and to display these venom characters, there are poison codes in the HTML. Hence the HTML units provide a series of letters. For these words we use the letter organizations of HTML.
The above sign is of non-breaking space, it does not allow the line to break, without breaking the line, it gives space between the two words in that line.
<body> <h1>This is h1 heading.</h1> </body>
In the above example, we have inserted this code between h1 and heading which gives a space in it without breaking the line, which can be output as follows.
Use an Entity:-
In this, let us see how we can use these codes of HTML. Each unit starts with ampersand (&) and ends with semicolon (;). Entity names are case sensitive. Below are some examples.
Result Description Entity Name Entity Number non-breaking space   & ampersand & & < less than < < > greater than > > " double quotation mark " " ' apostrophe ' ' ¢ cent ¢ ¢ £ pound £ £ ¥ yen ¥ ¥ € euro € € © copyright © © ® registered trademark ® ®
Some such syllable letters are found in HTML which add glyph below or above the letter.
Mark Character Construct Result ̀ a à à ́ a á á ̂ a â â ̃ a ã ã ̀ O Ò Ò ́ O Ó Ó ̂ O Ô Ô ̃ O Õ Õ