A mixed selector is a selector that uses a combination of all other selectors. The following CSS shows some good examples:/* selects <p class="quote"> tags */P.quote {font-style: italic}/* selects <p class="quote" id="onSale"> tags */P.quote#onSale {color: red}/* selects <p class=quote id=onSale> tags inside <table> */TABLE P.quote#onSale {background-color: red}/* selects <pre class=quote id=onSale> tags inside <table> and <pre id="onSale"> tags */TABLE P.quote#onSale, PRE#onSale {background-color: red}