To have the same modern and clean result as this on your portal, follow the steps below.
Use the "Fill Background" setting to give your portal a modern and sharp look.
The "Fill Background" feature sharpens the portal design by filling out the content to the full width of the browser window.
To activate Fill Background on a theme
Go to: Admin > Add-ons > RefinedTheme > Themes
Choose a theme to edit
Click Customer Portal in the feature menu
Activate the Fill Background setting
Save your theme. Navigate to the newly edited portal to see the result!
Add some of the portal content features to finish with both a modern and clean look
There are many content features you can add to your portal for a portal rich in content easy to locate. Here we share a few with you.
To add these neat content features to your portals
Click the button of your portal
Add a Navigation Highlight module or a Search Highlight module to the first row.
Add a background image or a set a background color on the recently added module.