Can you explain the distinction between ' &:hover' and ' & :hover' pseudoclass selectors?

While styling a Material-UI Button, I encountered an unexpected behavior when adding hover effects. When using & :hover, only the inner span of the button was affected. However, when using &:hover, the desired style was achieved. What is the difference between the two? Besides the space, of course! ^_^

Answer №1

  • &:hover applies the effect directly to the selected element
  • & :hover applies the effect to elements within the selected element.

According to W3:

  • .class1.class2 selects all elements with both - name1 and name2 set within its class attribute
  • .class1 .class2 selects all elements with name2 that are descendants of an element with name1

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