MEDIUM RECTANGLE EXPANDIBLE (500X300)
The banner expansion is chosen by the buyer who places the creativity. Most of the time expansion is set from right to left however it can be set to expand from left to right.
It is preferable to suggest the best placement and expansion direction immediately so the advertiser is guaranteed the best, most appreciable results.
In the 300×250 format, expansion should be placed in the first scroll to ensure high visibility.
This format allows a video beside the content to be viewed. The mouse over expands the format and starts the video, providing viewers optimum content visibility.