After following, you can keep track of his dynamic information in a timely manner
Courses in the relevant section：Common tags and attributes in HTML (text font formatting)
雙標簽em和i是斜體標簽，style中用text-indent:2em表示段落前面空出2個字體，del雙標簽是劃去標簽，span標簽，br標簽是換行標簽，pre雙標簽可以保留文本中的原本格式（換行、空格）都會保留下來，
2018-11-090個贊
