Define :
HTML Computer code elements which includes code tag in HTML ,kbd tag in HTML ,samp tag in HTML, var tag in HTML,code tag in HTML, pre tag in HTML.
<kbd> element
The kbd element represent user input
for example lets write a paragraph that contains text and ctrl+c is the keyboard input and using the kbd element to make the computer code.
--using the kbd element change the font-size and size.
<samp> element
The samp element represent sample or quoted output from another program or computing system .
samp represent the sample output.
<code> element
The code element represent a fragment of computer code and that could as an XML element name,file name and any string name that could be recognize.
it is used to change the normal text,size .
<var> element
The var element represents a variable and this could be an actual variable in mathematical expression,programming context .
a identifier represents a constant ,variables.