[SYMBOL] [A] [B] [C] [D] [E] [F] [G] [H] [I] [J] [K] [L] [M] [N] [O] [P] [Q] [R] [S] [T] [U] [V] [W] [X] [Z] <i> tags  2nd      <em> tags vs.  id attribute  2nd      <a>      <address>      <basefont>      <blockquote>      <center>      <div>  2nd      <dl>, <dt>, and <dd>      <form>      <frameset>      <isindex>      <label>      <map>      <object>      <p>  2nd      <q>      <ul>, <ol>, and <li>      for hyperlink targets      form controls      for style classes      table tags      XHTML documents  identifiers (IDs)     articles in newsgroups      messages on news servers  IE  [See Internet Explorer] IETF (Internet Engineering Task Force)  <iframe> tags  ignored HTML tags  <ilayer> tags  image maps     areas  2nd      clickable  2nd  3rd          <area> tags          <map> tags          web browsers and      client-side  2nd  3rd  4th      coordinates      HTML documents and      performance      server-side  2nd  3rd  images  [See also multimedia]2nd  3rd  4th      alignment  2nd      background  2nd  3rd          behind specific elements          layers          placement of          in tables  2nd          tiling whole background          troubleshooting      borders  2nd      clickable  [See image maps]     combining attributes for      converting to GIF89a      custom image buttons (forms)      download performance      flowing text around      graphics formats  2nd      in headings      hyperlinks and      as list item signifiers      margins around      preventing from scrolling  2nd      resizing      reusing      rules  [See horizontal, rules]     size      text flow around      text in place of      transparent  [See transparent GIFs]     true-color images      when to use      wrapping text around  <img> tags  2nd      custom image buttons (forms)      emulating spacers with      video extensions  implicit label associations (forms)  @import at-rule  imported external style sheets  2nd      linked vs.  inclusions  indentation      abusing <dt> for      block quotes      nested unordered lists, using for      paragraphs, with <spacer>      text-indent property for  index document relationship  infinite value (marquee looping)  inherit value (layer visibility)  inheritance, styles and  2nd  inline     frames      images      items      layers      references      styles  2nd          advantages and disadvantages of using  <input> tags      action buttons      checkboxes (type=checkbox)      file-selection (type=file)      hidden fields (type=hidden)      masked text-entry (type=password)      radio buttons (type=radio)      text-entry (type=text)  <ins> tags  inset borders  interaction pseudoclasses  interlacing  internationalization     dir and lang attributes      dir attribute, overriding with <bdo>  Internet  Internet Engineering Task Force (IETF)  Internet Explorer  2nd      <comment> tag      action attribute      Active technology and      animated text support      audio features      <basefont> tags, and      <bgsound> tags      color attribute      content-based tags      CSS supporting versions      evolution of standards, and      Extended Font Model tags, and      <img> tags, extensions to      inline audio, and      JavaScript supporting versions      leftmargin attribute      line-breaking in      market dominance of      multimedia support      notab attribute      nowrap attribute      obtaining      palette attribute      <q> tags and      table cell attributes and options      tags and line-breaking      text, direction and justification      title attribute      topmargin attribute      video extensions  intranets  IP (Internet protocol)      addresses  <isindex> tags  2nd  3rd  ismap attribute (<img>)  2nd  3rd  italic  2nd  [See also emphasis, tags for]3rd