Customising the display of an image
On the second page of the Image Wizard, you can set the height and width you want to stretch the image to. It is a good idea to set these attributes even if you want to insert the image as it's default style as it helps the browser set up the display of the page if it knows before it starts to download the image how big it is going to show it. To set these options, check the box to the left of it and enter the size of the image. The default sizes in the boxes are the size the image is saved as.
You can next set the border of the image. If the image forms part of a link, this border is shown in the link colour, by default blue. This can look ugly, so it is an idea to set this to 0. However, you can use this attribute to move the image away from the text.
Lastly, you can set the alignment of the image. You can select one of the predefined alignments from the drop down box, and a preview of what this may look like is shown below. Exactly what it will look like depends on what else is on the same line as the image. For example, while Top and TextTop may appear to do the same, if you have another image on the same line and you select Top, the top of this image will be aligned to the top of the previous image, while if you select TextTop, it will be aligned to the top of the text.