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HTML Computer Code Elements

Computer Code

<code>
x = 5;
y = 6;
z = x + y;
</code>
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HTML Computer Code Formatting

HTML normally uses variable letter size and spacing.

This is not what we want when displaying computer code.

The <kbd>, <samp>, and <code> elements are all displayed in fixed letter size and spacing.


HTML <kbd> For Keyboard Input

The HTML <kbd> element defines keyboard input:

Example

<p>Use the command <kbd>ctrl + S</kbd> to save</p>

Result:

Use the command ctrl + S to save
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HTML <samp> For Computer Output

The HTML <samp> element defines sample output from a computer program:

Example

<samp>
demo.example.com login: Apr 12 09:10:17
</samp>

Result:

demo.example.com login: Apr 12 09:10:17
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HTML <code> For Computer Code

The HTML <code> element defines a piece of programming code:

Example

<code>
x = 5;<br>
y = 6;<br>
z = x + y;
</code>

Result:

x = 5; y = 6; z = x + y;
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Notice that the <code> element does not preserve extra whitespace and line-breaks.

To fix this, you can put the <code> element inside a <pre> element:

Example

<pre>
<code>
x = 5;
y = 6;
z = x + y;
</code>
</pre>

Result:

x = 5;
y = 6;
z = x + y;
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HTML <var> For Variables

The HTML <var> element defines a variable.

The variable could be a variable in a mathematical expression or a variable in programming context:

Example

Einstein wrote: <var>E</var> = <var>m</var><var>c</var><sup>2</sup>.

Result:

Einstein wrote: E = mc2.
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Test Yourself with Exercises!

Exercise 1 »   Exercise 2 »   Exercise 3 »


HTML Computer Code Elements

Tag Description
<code> Defines programming code
<kbd> Defines keyboard input 
<samp> Defines computer output
<var> Defines a variable
<pre> Defines preformatted text