custom font based on lang

/* Custom fonts for Single Post page*/
html[lang="zh-CN"] .single-post #left-area .entry-title, /*set the font style for G*/
html[lang="zh-CN"] .single-post #left-area .post-meta, /*set the font style for H and I*/
html[lang="zh-CN"] .single-post #sidebar .widgettitle /*set the font style for J and k*/{
    font-family: 'Your-Font';
}