# Class "rw..." in preview source

**URL:** <https://forums.realmacsoftware.com/t/class-rw-in-preview-source/45676>\
**Category:** RapidWeaver Elements\
**Created:** [December 19, 2024, 2:44pm UTC](https://forums.realmacsoftware.com/t/class-rw-in-preview-source/45676 "2024-12-19T14:44:45Z")\
**Posts on this page:** 3\
**Page:** 1

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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:** [December 19, 2024, 2:44pm UTC](https://forums.realmacsoftware.com/t/class-rw-in-preview-source/45676/1 "2024-12-19T14:44:45Z")

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Looking at the code generated by Elements, I can see various divs that contain class names like: rwA3D19D2A\_DE6D\_XXXX\_B39F\_XXXXXXXXXXXX or rw2139C866\_XXXX\_447E\_94CD\_XXXXXXXXXXXX etc.

I have added a bit of redaction (as I don’t know what they signify) just in case. 😉  
What do these classes do?

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**Author:** ![dan](https://dub1.discourse-cdn.com/flex005/user_avatar/forums.realmacsoftware.com/dan/32/28516_2.png) [@dan](https://forums.realmacsoftware.com/u/dan)\
**Post date:** [December 19, 2024, 3:47pm UTC](https://forums.realmacsoftware.com/t/class-rw-in-preview-source/45676/2 "2024-12-19T15:47:42Z")

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You don’t need to worry about them, they are just unique ID’s for the components, no harm in posting them here ☺

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**Author:** ![ben](https://dub1.discourse-cdn.com/flex005/user_avatar/forums.realmacsoftware.com/ben/32/28488_2.png) [@ben](https://forums.realmacsoftware.com/u/ben)\
**Post date:** [December 19, 2024, 4:12pm UTC](https://forums.realmacsoftware.com/t/class-rw-in-preview-source/45676/3 "2024-12-19T16:12:12Z")

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We use the ID’s for some styling features and/or javascript interactivity 🙂