Edit Size of a Video Connection in a Rich Text Element


I connected Videos in a rich text element with my dropbox. This works very well.
Unfortunately te video does not fit inside of its cell and is bigger. Has someone a tip how I could fix the size?
This is the code I used in the Rich text element:

<video class="web-video-controller" playsinline loop muted autoplay style="background-image: url('');"data-wf-ignore="true">
<source src="https://www.dl.dropboxusercontent.com/scl/fi/7lncqqcxd9zovyx661it5/tatjana-wenig-adidas-deichmann.mp4?rlkey=1zhvy80qsv94945erqdl6ngg6&dl=0" data-wf-ignore="true"/>
<style> display: block </style>

This is how it looks:

This is how it should look:

Thank you very much!!

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