position - CSS: Cascading Style Sheets | MDN - Mozilla
https://developer.mozilla.org/en-US/docs/Web/CSS/position
DefinitionConstructionExamplePropertiesUsageRosterPerformance Scrolling elements containing fixed or sticky content can cause performance and accessibility issues. As a user scrolls, the browser must repaint the sticky or fixed content in a new location. Depending on the content needing to be repainted, the browser performance, and the device's processing speed, the browser may not be able to manage repaints ...
Scrolling elements containing fixed or sticky content can cause performance and accessibility issues. As a user scrolls, the browser must repaint the sticky or fixed content in a new location. Depending on the content needing to be repainted, the browser performance, and the device's processing speed, the browser may not be able to manage repaints ...
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