Huhu,

Zeilenumbrüche und das Einrücken sind immer sehr gute Methoden, einen Quellcode besser zu verstehen:

Warnung! Spoiler! (HTML-Code)
Html:
<table width=600 border=0 noborder cellpadding=0 cellspacing=0>
  <tr>
    <td>
      <font face="Verdana,Geneva,Arial,Helvetica" size=2>
        <marquee style="position:absolute; width:100; height:636; top:0;left:0; z-index:4;" direction="left" behavior="alternate" scrolldelay="0" scrollamount="15">
          <table width="1" height="636" border="0" cellspacing="0" cellpadding="0">
            <tr>
              <td width="1" height="636" border="0" bgcolor="ff0066" cellspacing="0" cellpadding="0">
              </td>
            </tr>
          </table>
        </marquee>
        <marquee style="position:absolute; width:100;height:600; top:0; left:0; z-index:4;" direction="left" behavior="alternate" scrolldelay="0" scrollamount="20">
          <table width="1" height="636" border="0" cellspacing="0" cellpadding="0">
            <tr>
              <td width="1" height="636" border="0" bgcolor="ff0066" cellspacing="0" cellpadding="0">
              </td>
            </tr>
          </table>
        </marquee>
        <marquee style="position:absolute;width:900; height:200; top:0; left:0; z-index:4;" direction="down" behavior="alternate" scrolldelay="0" scrollamount="15">
          <table width="900" height="1" border="0" cellspacing="0" cellpadding="0">
            <tr>
              <td width="000" height="1" border="0" bgcolor="FA026B" cellspacing="0" cellpadding="0">
              </td>
            </tr>
          </table>
        </marquee>
        <marquee style="position:absolute; width:900; height:200; top:0; left:0; z-index:4;" direction="down" behavior="alternate" scrolldelay="0" scrollamount="20">
          <table width="900" height="1" border="0" cellspacing="0" cellpadding="0">
            <tr>
              <td width="700" height="1" border="0" bgcolor="FA026B" cellspacing="0" cellpadding="0">
              </td>
            </tr>
          </table>
        </marquee>
      </font>
    </td>
  </tr>
</table>


Kroko.