If your image is not in that format, you need a program like LViewPro or Adobe's Photoshop to convert the file. A little window pops up over the image and displays that text. Including the width and height also help the page load quicker since the browser doesn't have to wait for the image to load before loading the text. This is 0 pixels away and the image is in the middle of its line. Images can be very tricky to line up and have the text flow around them properly.
Tables are a better option for controlling the image placement.
This tells the browser to force the image to the left and place other text and images to the right of it. Transparent GIFs are special GIF files where a color in that file has been flagged to be transparent when displayed in a web browser. When the browser reads the file, it displays one layer at a time, rotating through all of them until it reaches the last one and the whole process repeats itself. To make transparent GIFs, you use a program like LViewPro , and for Animated GIFs you need a program like Ulead Gif Animator . Save the picture to your personal directory.