ALS 3203 - Lesson 7
Glossary - HTML (Special Characters, Images, and Lists)
HTML - Lists
- <li>
- Precedes each item in an ordered or unordered list. If you omit this the bullet or number will not be written to the screen. However, you will then need to use the <br> tag at the end of each list item or else they will flow together. You do not need an </li> tag, but it won't hurt to use one.
- <ol>
- HTML tag to start an ordered (numbered) list. An </ol> is required. An example of an ordered list and its HTML tags is:
- First
- Second
- Third
<ol>
<li>First
<li>Second
<li>Third
</ol>
- <ul>
- HTML tag to start an unordered (bulleted) list. Requires an </ul> tag. An example of an unordered list and its HTML tags is:
- First
- Second
- Third
<ul>
<li>First
<li>Second
<li>Third
</ul>
Images
- alt=""
- provides descriptive words for image in the <img src=""> to provide text for mouse over image, and to provide information for people using software the read web page content (visually impaired). A complete image tag might be <img src="picture.gif" alt="This is a picture of a fly">.
- transparent .gif
- Frequently when you obtain a graphic image it will be contained within a colored block. If you are able to make the solid color of the image containing area transparent, only the image itself will show on the web page, appearing to fit onto the page. There are several freeware programs that allow you to convert a .gif image to a transparent image. YOu can search the Internet for "transparent gifs" to find these.
- right click
- Use the right mouse button to click on images you wish to download from Internet web pages.
- bitmap
- Graphics file type comprised of pixels. This is the file format of digitized images, and is the only type you can place in a web page. Presently 2 file types are allowed, .jpg and .gif. The quality of these images deteriorate with re-sizing.
- vector
- Graphical image created by mathematical equations. These images may be re-sized without losing image quality. However, this file type is not supported in web pages yet.
- .gif
- Graphics Interchange Format. A file format developed by Compuserve for storing bitmap images on disk.
- .jpg (.jpeg)
- Joint Photographic Experts Group. A file format for storing bitmap images with compression to make the file size smaller. This format is often used for high-quality photographic images.
- <img src="filename.gif">
- HTML tag for inserting image into web page. Remember, this tells the browser where the image is and its filename. If you don't give a path to the file the browser will assume that the image's location is the same as the html file that it is being used in.
