Top content is your pretty plugin, and bottom is ugly html5 audio. How can I block html5 panel displaying?
JoomHelper Media Player Plugin
This plugin is a simple, lightweight, accessible and customizable HTML5, YouTube and Vimeo media player that supports modern browsers.
Installation
Download the plugin and install it via the Joomla installer. Then go to Extensions > Plugins > Content - JoomHelper Media > Enable it.
Notice: This plugin is compatible with J3.4+ & J4, J5, J6.
How to use
This plugin supports Audio, Video, YouTube and Vimeo. With local video, it supports Thumbnail and Subtitle.
Create an example article and put the code below:
1. Insert audio file:
{audio <PATH TO FILE>}
Example: {audio media/audio.mp3} or {audio media/audio.ogg}
2. Insert video file
{video <PATH TO FILE>}
Example: {video media/video.mp4} or {video media/video.webm}
To add a subtitle, you need to create a subtitle file (*.vtt) with the same name as the video file and put it in the folder containing that video. Example with video is media/video.mp4, the subtitle file is media/video.vtt.

Do the same with the thumbnail. The image must have a JPG extension (*.jpg). In this example, the thumbnail is media/video.jpg.
3. Insert YouTube video
{youtube <YOUTUBE ID>}
Example: {youtube gdeqbg8QFJM} for video url: https://www.youtube.com/watch?v=gdeqbg8QFJM
4. Insert Vimeo video
{vimeo <VIMEO ID>}
Example: {vimeo 21946320} for video url: https://vimeo.com/21946320
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This plugin is a Content type, so if you want to use it for a module, please read this article.