Update style.css

[kanishkasah20]

Description

updated style.css , changed achievement card margin for better style. PR 95c833bcc0bed9123acf354c714eb75dc5f3d9ec

Screenshots

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Checklist

• [Yes ] Tests have been added or updated to cover the changes
• [ Yes] Documentation has been updated to reflect the changes
• [ Yes] Code follows the established coding style guidelines
• [ Yes] All tests are passing