查看“Categorized Main Page”的源代码

<div id="mainpage"></div> __NOTOC__ __NOEDITSECTION__

<!-- Welcome to OSDev.org box -->
{{Welcome}}
{{Help Us}}
{{Stylenav}}
<!-- Table stuff -->
{| style="width: 100%; margin: 0; padding: 0; border: 0; border-collapse: collapse;"
| style="padding: 0; width: 25%; vertical-align: top;" |

<!-- First column -->
{{Box|subject= OS Development}}
{{Box|subject= Resources}}

| style="padding: 0 0 0 10px; width: 25%; vertical-align: top;" |

<!-- Second column -->
{{Box|subject= Languages}}
{{Box|subject= Tools}}

| style="padding: 0 0 0 10px; width: 25%; vertical-align: top;" |

<!-- Third column -->
{{Box|subject= Hardware}}

| style="padding: 0 0 0 10px; width: 25%; vertical-align: top;" |

<!-- Forth column -->
{{Box|subject= OS theory}}

|}