tag_base.asp

W3Schools tutorial..web designing

<p>Assume that the absolute address for an image is:</p>

<table class="ex" cellspacing="0" border="1" width="100%">
  <tr>
    <td>&lt;img src=&quot;http://www.w3schools.com/images/smile.gif&quot; /&gt;
    </td>
</tr>
</table>

<p> 
Now we insert the &lt;base&gt; tag, which specifies a base URL for all of the 
links in a page, in the head section of a page:</p>

<table class="ex" cellspacing="0" border="1" width="100%">
  <tr>
    <td>&lt;head&gt;<br />
    &lt;base href=&quot;http://www.w3schools.com/images/&quot; /&gt;<br />
    &lt;/head&gt;</td>
</tr>
</table>

<p> 
When inserting images on the page in the example above, we just have to specify the
relative address, and the browser will look for that file using the full URL, 
&quot;http://www.w3schools.com/images/smile.gif&quot;:&nbsp;</p>

<table class="ex" cellspacing="0" border="1" width="100%">
  <tr>
    <td>&lt;img src=&quot;smile.gif&quot; /&gt;</td>
</tr>
</table>
<br />

<hr />

<h2>Required Attributes</h2>

<p><b>DTD</b> indicates in which <a href="tag_doctype.asp">DTD</a> the attribute is 
allowed. S=Strict, T=Transitional, and F=Frameset.</p>

<table class="ex" cellspacing="0" border="1" width="100%">
  <tr>
    <th width="15%" align="left" valign="top">Attribute</th>
    <th width="15%" align="left" valign="top">Value</th>
    <th width="65%" align="left" valign="top">Description</th>
    <th width="5%" align="left" valign="top">DTD</th>
  </tr>
  <tr>
    <td valign="top">href</td>
    <td valign="top">URL</td>
    <td valign="top">Specifies the URL to use as the base URL for links in the 
    page</td>
    <td valign="top">STF</td>
  </tr>
  </table>
<h2>Optional Attributes</h2>

<table class="ex" cellspacing="0" border="1" width="100%">
  <tr>
     <th width="15%" align="left" valign="top">Attribute</th>
    <th width="15%" align="left" valign="top">Value</th>
    <th width="65%" align="left" valign="top">Description</th>
    <th width="5%" align="left" valign="top">DTD</th>
  </tr>
  <tr>
    <td valign="top">target</td>
    <td valign="top">_blank<br />
      _parent<br />
      _self<br />
      _top</td>
    <td valign="top">Where to open all the links on the page. This attribute can be overridden by
      using the target attribute in each link.<ul>
        <li>_blank - all the links will open in new windows</li>
        <li>_self - all the links will open in the same frame they where clicked</li>
        <li>_parent - all the links will open in the parent frameset</li>
        <li>_top - all the links will open in the full body of the window</li>
    </ul>
      </td>
    <td valign="top">TF</td>
  </tr>
</table>
<h2>Standard Attributes and Events</h2>
<p>NONE</p>

<hr />
<h2>Try-It-Yourself Demos</h2>
<p><a target="_blank" href="tryit.asp@filename=tryhtml_base">One target for all links</a><br />
How to use the &lt;base&gt; tag to let all the links on a page have the same target.</p>
<hr />

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