Unknown propertyUnknown Property
The CSS property name is not recognized by the browser.
Overflow hidden clippingContent is being clipped or hidden unexpectedly due to overflow settings.
A parent element has overflow: hidden set, which clips all content that extends beyond its boundaries. This includes absolutely positioned children, box shadows, and dropdown menus.
Use overflow: visible on the parent if clipping is not needed. Move absolutely positioned elements outside the overflow container. Use overflow: clip with overflow-clip-margin for more control.
Unknown propertyThe CSS property name is not recognized by the browser.
CSS nesting unsupportedThe browser does not support native CSS nesting syntax.
gap not working in flexboxThe gap property does not create spacing in a flex container.
Invalid @keyframesThe @keyframes animation definition has a syntax error.
Circular CSS variableTwo or more CSS custom properties reference each other, creating a circular dependency.
Specificity conflictA CSS rule is not applied because a more specific selector overrides it.