Issue with Border Automatically Appearing for MP3 Audio in RoboHelp 2019 Classic WebHelp Output

Hi,

I am facing an issue while using RoboHelp 2019 Classic to generate WebHelp output. When I add an .mp3 audio file to my topic, the generated output automatically adds a border around the audio player.

I tried the following steps to resolve the issue:

1. Modified the HTML code by changing style="border: 1px solid;" to style="border: none;" in the HTML view while authoring.
2. Despite the changes, the border reverts to style="border: 1px solid;" in the generated WebHelp output.

It seems like RoboHelp is overriding my changes during the generation process.

Has anyone encountered this issue before? Could you suggest an appropriate solution to ensure the border is removed from the audio player in the final WebHelp output?

This issue is only with Robohelp Classic version not the Robohelp Reimagined one.