Problem description

Given an HTML file with a <section class="fullscreen-section">, write CSS to ensure it fills the entire viewport height and applies a solid background color (e.g., #f5f7fa). Center the content horizontally and vertically.

Goal

Fill the viewport and set a background color with centered content.

Constraints

• Do not use JavaScript.

• Only use the provided class.

• Do not change the HTML structure.

Sample visual output

Here’s what the output would look like:

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