CSS » Sticky is Weird and Hard

I’ve fixed that issue: if the parent is “flex”, then align-self: start; must be applied. And of course, top: 0px; as well.

Sticky CSS method Alternatives using WordPress plugins.

• Sticky Content – Stick any content on pages
• Sticky Anything
• Ocean Stick Anything
• WPWing Sticky Block
• Fixed Widget and Sticky Elements for WordPress
• All-in-One WP Sticky Anything
• Sticky Blocks & Sticky Ads