What does the transform property do?
lets you rotate, scale, skew, or translate an element. It modifies the coordinate space of the CSS visual formatting model.
What is the difference between the :first-child pseudo selector and the :last-child pseudo selector?
he :first-child pseudo class means “if this element is the first child of its parent”. :last-child means “if this element is the last child of its parent”. Note that only element nodes (HTML tags) count, these pseudo-classes ignore text nodes.