2. Sibling
悋悋愆悋悄 惠忰惆惆
( div + p ) selects all <p> elements that are placed immediately after <div> elements
( div ~ p ) selects all <p> elements that are siblings of <div> elements
adjacent sibling selector (+) 悋悴悋惘 悋悋愆悋悄 悋惺惶惘 惠忰惆惆
general sibling selector (~) 惺悋 惡愆 悋悋愆悋悄 悋惺悋惶惘 惠忰惆惆
悋惆愕
:
悋惡惘 悖愕