Bildunterschrift samt fließenden Text unter IE

[Dionysos]

http://de.selfhtml.org/css/eigenschaften/

Ok. Danke für den Link. Ich bin mittlerweile auf 5 Fehler runter. Aber das hier verstehe ich immer noch nicht:

…ef="bildlink" target="_blank">text</a>

sagt er mir "there is no attribute "target"".

You have used the attribute named above in your document, but the document type you are using does not support that attribute for this element. This error is often caused by incorrect use of the "Strict" document type with a document that uses frames (e.g. you must use the "Transitional" document type to get the "target" attribute), or by using vendor proprietary extensions such as "marginheight" (this is usually fixed by using CSS to achieve the desired effect instead).

This error may also result if the element itself is not supported in the document type you are using, as an undefined element will have no supported attributes; in this case, see the element-undefined error message for further information.

Ist aber alles korrekt angegeben, wie es sich gehört. Was mache ich da falsch?