检视 HTML 代码应具备那些知识？
常见问题 更新日期 八月 9, 2018
当检视代码时，你可以会看到以下内容：
| Document Type | <HTML></HTML> | (beginning and end of file) |
| Title | <TITLE></TITLE> | (must be in header) |
| Header | <HEAD></HEAD> | (descriptive info, such as title) |
| Body | <BODY></BODY> | (bulk of the page) |
| Heading | <H?></H?> | (the spec. defines 6 levels) |
| Align Heading | <H? ALIGN=LEFT|CENTER|RIGHT></H?> | |
| Division | <DIV></DIV> | |
| Align Division | <DIV ALIGN=LEFT|RIGHT|CENTER|JUSTIFY></DIV> | |
| Defined Content | <SPAN></SPAN> | |
| Block Quote | <BLOCKQUOTE></BLOCKQUOTE> | (usually indented) |
| Emphasis | <EM></EM> | (usually displayed as italic) |
| Strong Emphasis | <STRONG></STRONG> | (usually displayed as bold) |
| Citation | <CITE></CITE> | (usually italics) |
| Code | <CODE></CODE> | (for source code listings) |
| Variable | <VAR></VAR> | |
| Definition | <DFN></DFN> | (not widely implemented) |
| Author’s Address | <ADDRESS></ADDRESS> | |
| Large Font Size | <BIG></BIG> | |
| Large Font Size | <SMALL></SMALL> | |
| Bold | <B></B> | |
| Italic | <I></I> | |
| Underline | <U></U> | (not widely implemented) |
| Strikeout | <STRIKE></STRIKE> | (not widely implemented) |
| Strikeout | <S></S> | (not widely implemented) |
| Subscript | <SUB></SUB> | |
| Superscript | <SUP></SUP> | |
| Preformatted | <PRE></PRE> | (display text spacing as-is) |
| Center | <CENTER></CENTER> | (for both text and images) |
| Font Size | <FONT SIZE=?></FONT> | (ranges from 1-7) |
| Font Color | <FONT COLOR="#$$$$$$"></FONT> | |
| Select Font | <FONT FACE="***"></FONT> | |
| Weight | <FONT WEIGHT=?></FONT> | |
| Marquee | <MARQUEE></MARQUEE> |
| Link Something | <A HREF="URL"></A> | |
| Link to Location | <A HREF="URL#***"></A> | (if in another document) |
<A HREF="#***"></A> | (if in current document) | |
| Target Window | <A HREF="URL" TARGET="***"></A> | |
| Link to Email | <A HREF="mailto:@"></A> | |
| Specify Subject | <A HREF="mailto:@?SUBJECT=***"></A> | (use a real question mark) |
| Define Location | <A NAME="***"></A> | |
| Display Image | <IMG SRC="URL"> | |
| Alignment | <IMG SRC="URL" ALIGN=TOP|BOTTOM|MIDDLE|LEFT|RIGHT> | |
| Alignment | <IMG SRC="URL" ALIGN=TEXTTOP|ABSMIDDLE|BASELINE|ABSBOTTOM> | |
| Alternate | <IMG SRC="URL" ALT="***"> | (if image not displayed) |
| Dimensions | <IMG SRC="URL" WIDTH=? HEIGHT=?> | (in pixels) |
<IMG SRC="URL" WIDTH=% HEIGHT=%> | (as percentage of page width/height) | |
| Border | <IMG SRC="URL" BORDER=?> | (in pixels) |
| Runaround Space | <IMG SRC="URL" HSPACE=? VSPACE=?> | (in pixels) |
| Imagemap | <IMG SRC="URL" USEMAP="URL"> | |
| Client-Side Map | <MAP NAME="***"></MAP> | (describes the map) |
| Map Section | <AREA SHAPE="DEFAULT|RECT|CIRCLE|POLY" COORDS=",,," HREF="URL"|NOHREF> | |
| Paragraph | <P></P> | (closing tag often unnecessary) |
| Align Text | <P ALIGN=LEFT|CENTER|RIGHT></P> | |
| Justify Text | <P ALIGN=JUSTIFY></P> | |
| Line Break | <BR> | (a single carriage return) |
| Clear Textwrap | <BR CLEAR=LEFT|RIGHT|ALL> | |
| Horizontal Rule | <HR> | |
| Alignment | <HR ALIGN=LEFT|RIGHT|CENTER> | |
| Thickness | <HR SIZE=?> | (in pixels) |
| Width | <HR WIDTH=?> | (in pixels) |
| Width Percent | <HR WIDTH="%"> | (as a percentage of page width) |
| Unordered List | <UL><LI></UL> | (<LI> goes before each list item) |
| Compact | <UL COMPACT></UL> | |
| Bullet Type | <UL TYPE=DISC|CIRCLE|SQUARE> | (for the whole list) |
| Bullet Type | <LI TYPE=DISC|CIRCLE|SQUARE> | (this & subsequent) |
| Ordered List | <OL><LI></OL> | (<LI> goes before each list item) |
| Numbering Type | <OL TYPE=A|a|I|i|1> | (for the whole list) |
| Numbering Type | <LI TYPE=A|a|I|i|1> | (this & subsequent) |
| Starting Number | <OL START=?> | (for the whole list) |
| Starting Number | <LI VALUE=?> | (this & subsequent) |
| Definition List | <DL><DT><DD></DL> | (<DT>=term, <DD>=definition) |
| Tiled Bkground | <BODY BACKGROUND="URL"> | |
| Bkground Color | <BODY BGCOLOR="#$$$$$$"> | (order is red/green/blue) |
| Text Color | <BODY TEXT="#$$$$$$"> | |
| Link Color | <BODY LINK="#$$$$$$"> | |
| Visited Link | <BODY VLINK="#$$$$$$"> | |
| Active Link | <BODY ALINK="#$$$$$$"> |
| Define Table | <TABLE></TABLE> | |
| Table Alignment | <TABLE ALIGN=LEFT|RIGHT|CENTER> | |
| Table Border | <TABLE BORDER></TABLE> | (either on or off) |
| Table Border | <TABLE BORDER=?></TABLE> | (you can set the value) |
| Cell Spacing | <TABLE CELLSPACING=?> | |
| Cell Padding | <TABLE CELLPADDING=?> | |
| Desired Width | <TABLE WIDTH=?> | (in pixels) |
| Width Percent | <TABLE WIDTH=%> | (percentage of page) |
| Table Color | <TABLE BGCOLOR="$$$$$$"></TABLE> | |
| Table Row | <TR></TR> | |
| Alignment | <TR ALIGN=LEFT|RIGHT|CENTER|MIDDLE|BOTTOM> | |
| Table Cell | <TD></TD> | (must appear within table rows) |
| Alignment | <TD ALIGN=LEFT|RIGHT|CENTER VALIGN=TOP|MIDDLE|BOTTOM> | |
| No linebreaks | <TD NOWRAP> | |
| Columns to Span | <TD COLSPAN=?> | |
| Rows to Span | <TD ROWSPAN=?> | |
| Desired Width | <TD WIDTH=?> | (in pixels) |
| Width Percent | <TD WIDTH="%"> | (percentage of table) |
| Cell Color | <TD BGCOLOR="#$$$$$$"> | |
| Header Cell | <TH></TH> | (same as data, except bold centered) |
| Alignment | <TH ALIGN=LEFT|RIGHT|CENTER|MIDDLE|BOTTOM> | |
| No Linebreaks | <TH NOWRAP> | |
| Columns to Span | <TH COLSPAN=?> | |
| Rows to Span | <TH ROWSPAN=?> | |
| Desired Width | <TH WIDTH=?> | (in pixels) |
| Width Percent | <TH WIDTH="%"> | (percentage of table) |
| Cell Color | <TH BGCOLOR="#$$$$$$"> | |
| Table Body | <TBODY> | |
| Columns Spanned | <COL SPAN=?></COL> | |
| Column Width | <COL WIDTH=?></COL> | |
| Width Percent | <COL WIDTH="%"></COL> | |
有回答到您的问题吗？
