.center-display .object{ position: absolute; width: 0.5em; height: 0.5em; top: 0; bottom: 0.8em; left: 0; right: 0; margin: auto auto; border-radius: 50%; background-color: red; text-indent: -300em; } .center-display:nth-child(2) .object{ bottom: 0; }
居中和偏上一点点的代码，你能看出哪个是真真的放在中心吗？
get busy living, or get busy dying.