Email Confirmation Screen Image Looks Strange on Mobile View

**Description**

On the Email Confirmation screen, the image looks a bit strange on mobile devices.

**Steps:**
1. Navigate to the [signup page](http://localhost:8000/accounts/signup/) using a mobile view
2. Enter your sign up information
3. Navigate to the confirmation screen image

**Actual Result**

The image looks a bit strange in the mobile view, making the overall layout appear visually inconsistent with the expected design.

**Expected Result**

The image should display consistently across supported mobile viewports.

Start at the signup page entry point and follow the flow to the Email Confirmation screen. Reproduce the issue in mobile viewports using the provided screenshots as reference, then verify that the image and surrounding layout display consistently across supported mobile sizes.

Written by the indexing model from the issue text.