# Exercise 3.3 (Challenge): Change image size

Remove the *Scale width 1200* effect in the *Job Posting Image* style and replace it with Scale and Crop, applying 1200px wide and 400px height dimensions.

Review how GovCMS updates the *Job posting* images for the existing content.

**What if you want to change the image size?**

The original image is saved as a backup and can be changed. If you decide to change the *Job Posting Image* style later (for example change the image’s dimensions to 200 x 200) GovCMS will automatically resize all *Job posting* images. You can also completely change the image style used in a content type by editing the content type display settings. This also flushes the cached versions and creates new, resized versions (which are copies of the original).