I just had a quick look and I think it's your code which contains quite a few errors with only a cursory glance.
You need to close your 'keywords' meta tag
in HTML the <input> tag has no end tag
Quotation mark found between tags, HTML documents should not contain these values. use " instead
The tag:"div" is not allowed within: "a" tag.
There are other problems but sorting those out would be a good start.
If you are learning html then it may help to invest in a good authoring program such as Adobe Dreamweaver as it will flag up issues and offer help.