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)
双标签em和i是斜体标签，style中用text-indent:2em表示段落前面空出2个字体，del双标签是划去标签，span标签，br标签是换行标签，pre双标签可以保留文本中的原本格式（换行、空格）都会保留下来，
2018-11-090个赞
