Web Internet Telent Email WWW BBS FTP TCP IP  News Browser HTTP 
TOMCAT IIS APACHE IE Firefox Chrome Opera Safari Client value PHP JSP 
ASP Request script

htm HyperText Markup Language VBScript p h1 body align center id tilte class 
style XHTML br typ text readonly head body strict Transitional Frameset DTD 
meta script style link content http equiv

< > &npsb;  b i u s sup sub h1 p align br div span style color hr size width 
pre 

URL JPEG GIF PNG PNG24 img src a href target name _blank zip @ #

table tr td border cellpadding cellspacing bgcolor valign colspan rowspan 
caption thead tbody tfoot

ol ul li type start 1 a A i I disc circle square dt dd

header section footer nav aside article 

form action method enctype name input textarea select option type value 
disabled text password maxlength readonly radio checkbox checked submit 
reset button hidden file lable size multiple cols rows fieldset legend

iframe src URL details summary metter min max value datetime T mark