This is an attribute for body tag used for setting image or picture as a background.
The value for the attribute is the path of the image file.
In this example we have a image file named test.jpg in the same directory of the html file, so we use the path as ./test.jpg
It is mainly used when we want a common background a lines/stripes etc.
The image in our example, test.jpg is a very small one as shown here
So a very small image can be used to set the background of such a big page
Combining all the tags learned so far
<title> My Page
<body bgcolor="green" background="./test.jpg">
This is my first page
Copy the code or type the code in to the textbox shown under subtopics and click show.
Such a kind of background occur because when the image size is small it will be placed again next to it, until the size reaches the total height and width of the screen.