2. Create image styles

Step 1 Go to Configuration

Step 2 In MEDIA area > Image styles, click "Add style" link to create article style with following properties:

Step 3 Click "Create new style" button.

Step 4 Under Effect, Select "Scale " effect.

Step 5 Click Add button > New popup is opened, Set following properties:

Step 6 Under Effect, Select "Crop " effect.

Step 7 Click Add button > New popup is opened, Set following properties:

Step 8 Click "Add effect" button.

Step 9 Similar to create other image styles following setting below: