[$15][MSFT-17] The link in right menu doesn't have outline when focus by keyboard

[veshu]

Steps to Reproduce

1. Navigate to https://www.topcoder.com/challenges?
2. Select "All challenge"
3. Then use the tab key to navigate to link in right menu

Expected Result
The link should have blue outline when focus by tab key

Actual Result
The link doesn't have outline when focus by keyboard

Device: Desktop/Labtop
Operating System: Windows
Browser: Chrome

WCAG Category: 2. Operable
WCAG Level: A
WCAG Success Criterion: 2.1.1 Keyboard
Screen Reader Used:
Accessibility Audit Tool used:

Attachment
https://topcodermsft-my.sharepoint.com/personal/pd-topcoder_topcodermsft_onmicrosoft_com/Documents/Forms/All.aspx?cid=b9c070b1%2Dbb96%2D40e1%2Db92f%2D16f47db5d911&FolderCTID=0x0120005C598A51049FC14CBA882E1AEE168F51&id=%2Fpersonal%2Fpd%2Dtopcoder%5Ftopcodermsft%5Fonmicrosoft%5Fcom%2FDocuments%2FMSFT%2DTeams%2DQA%2FJune%202019%2F29%20Jun%2FTest%20Results%2FBug%20Videos%20%26%20Log%20Files%2Fdoremihong%2FTest%20for%20Accessibility%20Challenge%2FBug%5F1

[ThomasKranitsas]

Contest https://www.topcoder.com/challenges/30096108 has been created for this ticket.

This is an automated message for thomaskranitsas via Topcoder X

[ThomasKranitsas]

Contest https://www.topcoder.com/challenges/30096108 has been updated - the new changes has been updated for this ticket.

This is an automated message for thomaskranitsas via Topcoder X

[r0hit-gupta]

Please assign me

[cwdcwd]

Contest https://www.topcoder.com/challenges/30096108 has been updated - it has been assigned to rohitgupta_.

This is an automated message for lazybaer via Topcoder X