line 1 column 1 - Access: [3.3.1.1]: use style sheets to control presentation.
line 3 column 1 - Access: [13.2.1.1]: Metadata missing.
line 7 column 1 - Access: [10.1.1.1]: new windows require warning (_new).
line 7 column 1 - Warning: <a> attribute "target" has invalid value "_new"
Tidy found 1 warning and 0 errors!

For further advice on how to make your pages accessible
see https://www.w3.org/WAI/GL and https://www.html-tidy.org/accessibility/.