Lesson 5: Graphics
Putting A Picture On The Web Page
Making a website is not complete without adding graphics to make it look nice and pretty. Putting a picture on a web page is done with the img tag.
The img tag is a single tag so does not require a closing tag:
The img stands for "image", src is an attribute, it tells the browser where to find the picture. The stuff in the quotation marks is the file name of the graphic, replace filename.jpg with the file name of your picture and be sure it’s between the quotes.
You must also include the picture's format, e.g. jpg as in the above example. More on image format later in this lesson.
To keep things simple, for now store your pictures in the same place as your web pages, for example if you keep your HTML files in a folder called "my pages", put your pictures there too.
Every picture on a web page has its very own img tag:
That will put two pictures side by side on the page:
If an img tag is enclosed between the opening and closing p tags, the other image will start on a new line:
Give your pictures a description by adding an alt attribute to the img tag like so:
The alt attribute will make the description appear if a browser does not display images. In some browsers the description will also pop up when a mouse pointer is moved over the picture.
Pictures on the web are usually either in gif or jpg format. The gif format is mostly used for pictures with solid blocks of color such as charts, or when an image requires a transparent background. The jpg format is suitable for pictures with subtle color changes such as photos.
In addition to the proper format, images on websites also need to be optimized, that is, the picture's file size needs to be lowered so that it won't take too long to load. For more info see Optimizing Graphics.
Next we're going to make links in lesson 6.