{"action":"closed","issue":{"url":"https://api.github.com/repos/642495539/learn-feng/issues/6","labels_url":"https://api.github.com/repos/642495539/learn-feng/issues/6/labels{/name}","comments_url":"https://api.github.com/repos/642495539/learn-feng/issues/6/comments","events_url":"https://api.github.com/repos/642495539/learn-feng/issues/6/events","html_url":"https://github.com/642495539/learn-feng/issues/6","id":130131770,"number":6,"title":"class选择器","user":{"login":"642495539","id":7091349,"avatar_url":"https://avatars.githubusercontent.com/u/7091349?v=3","gravatar_id":"","url":"https://api.github.com/users/642495539","html_url":"https://github.com/642495539","followers_url":"https://api.github.com/users/642495539/followers","following_url":"https://api.github.com/users/642495539/following{/other_user}","gists_url":"https://api.github.com/users/642495539/gists{/gist_id}","starred_url":"https://api.github.com/users/642495539/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/642495539/subscriptions","organizations_url":"https://api.github.com/users/642495539/orgs","repos_url":"https://api.github.com/users/642495539/repos","events_url":"https://api.github.com/users/642495539/events{/privacy}","received_events_url":"https://api.github.com/users/642495539/received_events","type":"User","site_admin":false},"labels":[],"state":"closed","locked":false,"assignee":null,"milestone":null,"comments":2,"created_at":"2016-01-31T14:21:20Z","updated_at":"2016-02-01T13:09:35Z","closed_at":"2016-02-01T13:09:35Z","body":"```css\r\n #class1 div{\r\n\t\r\n\tbackground-color:red;\r\n}\r\n\r\n div#class1{\r\n\t\r\n\tbackground-color:red;\r\n}\r\n```\r\n//教材上说是第一种语法正确，但是在chrome中第二种可以，第一种不行，why"}}