# YouTube Bug? Tried custom HTML doesn't scale

**URL:** <https://forums.realmacsoftware.com/t/youtube-bug-tried-custom-html-doesnt-scale/51619>\
**Category:** Elements\
**Created:** [October 9, 2025, 1:16pm UTC](https://forums.realmacsoftware.com/t/youtube-bug-tried-custom-html-doesnt-scale/51619 "2025-10-09T13:16:43Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![MichaelDroste](https://dub1.discourse-cdn.com/flex005/user_avatar/forums.realmacsoftware.com/michaeldroste/32/37212_2.png) [@MichaelDroste](https://forums.realmacsoftware.com/u/MichaelDroste)\
**Post date:** [October 9, 2025, 1:16pm UTC](https://forums.realmacsoftware.com/t/youtube-bug-tried-custom-html-doesnt-scale/51619/1 "2025-10-09T13:16:43Z")

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The video looks the right size on the webpage and in Elements

Play it and it shrinks to upper left corner of page

 ![Screenshot 2025-10-09 at 8.13.11 AM](https://europe1.discourse-cdn.com/flex005/uploads/realmacsoftware1/original/3X/a/8/a838c0e5935e9973ba78a4a69d011e4761c2d07a.jpeg)

 ![Screenshot 2025-10-09 at 8.12.56 AM](https://europe1.discourse-cdn.com/flex005/uploads/realmacsoftware1/original/3X/c/9/c9981c1b69ee0654609dd328c70e5d5fac1f88ad.jpeg)

I tried do a set set html block - but it messed up mobile as it doesnt scale to small screens…

any ideas?

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**Author:** ![logrunner](https://avatars.discourse-cdn.com/v4/letter/l/59ef9b/32.png) [@logrunner](https://forums.realmacsoftware.com/u/logrunner)\
**Post date:** [October 9, 2025, 1:24pm UTC](https://forums.realmacsoftware.com/t/youtube-bug-tried-custom-html-doesnt-scale/51619/2 "2025-10-09T13:24:29Z")

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See this thread: [Video lightbox cropping](https://forums.realmacsoftware.com/t/video-lightbox-cropping/51397)

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<div class="post-metadata">

**Author:** ![MichaelDroste](https://dub1.discourse-cdn.com/flex005/user_avatar/forums.realmacsoftware.com/michaeldroste/32/37212_2.png) [@MichaelDroste](https://forums.realmacsoftware.com/u/MichaelDroste)\
**Post date:** [October 9, 2025, 8:26pm UTC](https://forums.realmacsoftware.com/t/youtube-bug-tried-custom-html-doesnt-scale/51619/3 "2025-10-09T20:26:27Z")

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Seems to go now off screen to the right in 1.3.6

 ![IMG_6269](https://europe1.discourse-cdn.com/flex005/uploads/realmacsoftware1/original/3X/e/7/e7159582f1840d92e9ee98105d928512f8adc894.jpeg)  
 ![IMG_6268](https://europe1.discourse-cdn.com/flex005/uploads/realmacsoftware1/original/3X/4/1/410a4f9e6d14d530b57ee747c0454eabd2996023.jpeg)

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**Author:** ![Doobox](https://dub1.discourse-cdn.com/flex005/user_avatar/forums.realmacsoftware.com/doobox/32/32373_2.png) [@Doobox](https://forums.realmacsoftware.com/u/Doobox)\
**Post date:** [October 9, 2025, 8:37pm UTC](https://forums.realmacsoftware.com/t/youtube-bug-tried-custom-html-doesnt-scale/51619/4 "2025-10-09T20:37:28Z")

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They are on it: [Video lightbox cropping - #13 by ben](https://forums.realmacsoftware.com/t/video-lightbox-cropping/51397/13)

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<div class="post-metadata">

**Author:** ![MichaelDroste](https://dub1.discourse-cdn.com/flex005/user_avatar/forums.realmacsoftware.com/michaeldroste/32/37212_2.png) [@MichaelDroste](https://forums.realmacsoftware.com/u/MichaelDroste)\
**Post date:** [October 10, 2025, 11:33am UTC](https://forums.realmacsoftware.com/t/youtube-bug-tried-custom-html-doesnt-scale/51619/5 "2025-10-10T11:33:14Z")

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1.3.7 Still a little off… Pulling to the right

 ![Screenshot 2025-10-10 at 6.31.25 AM](https://europe1.discourse-cdn.com/flex005/uploads/realmacsoftware1/original/3X/d/1/d121cd62b609d87cc25d103b6ee764d3ca5105e3.jpeg)

 ![Screenshot 2025-10-10 at 6.31.05 AM](https://europe1.discourse-cdn.com/flex005/uploads/realmacsoftware1/original/3X/5/1/51bb90c2b720bedcd9e3f1c5c83221dfcb813e18.jpeg)