Outlook BUTTON PURPLE Color Issue

Description - In Some of the Email Clients, If user click on visited link of button then button color gets change into purple color.

Problem Statement - In Outlook 2016, Outlook 2019 Windows and some of other email clients, It is noticed that after click of button, visited link opens into new window properly but button color gets changed and it appears in purple color.

outlook 2016 button visited link 

outlook 2016 button visited link purple color 

Known Email Clients - 

• Outlook 2013 Win 10
• Outlook 2016 macOS
• Outlook 2016 Win 10
• Outlook 2019 Win 10
• Outlook iOS 11.3.1
• Outlook Android 7.0
• Outlook.com Explorer
• Outlook.com Firefox
• Outlook.com Chrome
• Office 365 Explorer
• Office 365 Firefox
• Office 365 Chrome

Solution - Inside <a anchor tag, use <strong tag instead of using <p tag and add style attribute having value font-weight:normal; This will work.

<td role="heading" aria-level="6" align="center" style="border: 1px solid #0078d4; background:#e6e6e6; line-height: 20px; font-family: 'Segoe UI Semibold', Helvetica, Arial, sans-serif; font-size: 16px;padding: 10px 35px 10px 35px;">

   <a title="Learn More" style="color: #000000;text-decoration:none;text-align: center;" href="#">

   <strong style="font-weight:normal;">

   Claim your discount   </strong>   

   </a>

</td>