50Projects01ExpandingCards(附带新手菜鸡注释)LiveDemoHTML:ExpandingcardsExploreWorldWildForestSunnyBeachCityonWinterMountains-CloudsCSS*{box-sizing:border-box;}body{display:flex;align-items:center;justify-content:center;height:100vh;overflow:hidden;margin:0;}.container{display:flex;width:90vw;}.panel{backgro
