# GenerateBlocks CSS mode and live preview > [!quote] > "Once you did, there was no live preview… now in this beta 3 release they've just added this CSS mode" — turning an "unusable" earlier beta into something production-ready. Identical capability (write CSS in-editor), opposite adoption outcome — the deciding factor was the feedback loop (live preview), i.e. cognitive-load reduction, not a new feature. ## Links - [[3. Resources/Permanent Notes/Developer-Tool Adoption Tracks Cognitive-Load Reduction Not Feature Count]] — live preview is the case showing that feedback-loop friction determines adoption more than raw capability - [[Lit · AI tools democratize WordPress block development]] — another lower-the-barrier move in WordPress block building, where the win is reduced friction not raw capability - [[DevRel MOC]] — the GenerateBlocks case gives developer educators a concrete adoption lesson about shortening feedback loops ## Source - [[3. Resources/Readwise/Articles/This Forever Changes How I Build Websites in GenerateBlocks|This Forever Changes How I Build Websites in GenerateBlocks]]