Image Tags
<img src=> Begins the image tag. No end tag is necessary.
height Deals with the height of the image. Not required to be used though.
width Adjusts the width of the tag.
border Adjusting the border of the image. The default number is 0.
alt Gives the image a label which show where image is not loaded.

You can combine the <img> tag attributes but it does help identify what the image is in search engines perhaps.

Examples:

<img src="http://www.tufat.com/images/icons/osdate.jpg">
Would give you this -

<img src="http://www.tufat.com/images/icons/osdate.jpg" width="300" border=2 alt="Example of img tag">
Example of img tag

This example shows how you can resize and decorate image with border. If you disable showing of images in your browser, you will see string "Example of img tag" instead of picture.

Horizontal line tags
<hr> Deals with making horizontal rules. No end tag is required
size Determines the height of the rule. Default is 0.
width It deals with the width and can be used either by % or pixels.
noshade Gives the <hr> tag no shadows at all.
color Determines a color of line. This attribute works in Internet Explorer only.

Examples

<hr>

This is standard horizontal line.
<hr size="5" color="#ff0000" width="20%" noshade>
becomes what you see below:

HTML menu.