Information on the structure of the background graphic

The background graphic must be structured in the following manner.
From top to bottom, it must have the following states and they must have exactly the same size:

  1. Normal
  2. Mouseover
  3. Mousedown
  4. Inactive

From left to right, the columns are defined in the same width, and as follows :

  1. Visible while answering the test question
  2. Visible in the evaluation
  3. Visible in the sample solution

The height of the element is automatically adapted to the "Normal" state and its width adapted to the first column.