修改Twenty Ten模板宽度

\wp-content\themes\twentyten\functions.php(173):
‘width’ => apply_filters( ‘twentyten_header_image_width’, 940 ),

\wp-content\themes\twentyten\style.css(175):
width: 940px;

\wp-content\themes\twentyten\style.css(410):
width: 940px;