Html5 css3 左箭头,CSS3 左右箭头（尖头括号）
CSS语言：CSSSCSS确定html {background: lightgray;}body {position: absolute;top: 50%;left: 50%;width: 6rem;height: 3rem;-webkit-transform: translate(-50%, -50%);-ms-transform: translate(-50%, -50%);transform...
