When it comes to typography on web pages, the choice of typeface and font can have a huge impact on the overall design and user experience. One common typeface that has been used for centuries is the traditional Chinese font known as SimSun, better known as Song or 宋體 in Chinese.

body { 
font-family: "SimSun";
}

While SimSun is a popular choice for Chinese language content, the font may not always look appealing when used for English content or when combined with other typefaces. This is where CSS comes in handy.

CSS, or Cascading Style Sheets, is a style sheet language used to add design and layout to web pages. It allows web developers to fine-tune the appearance of their web pages by controlling various styling factors, including font choices and sizes.

With CSS, it's possible to specify that English text should appear in a different font than Chinese text. This way, the SimSun font can be reserved for Chinese text, while another font of your choosing can be used for English text.

body {
font-family: 'SimSun', Arial, sans-serif;
}

Additionally, CSS makes it possible to customize various aspects of text presentation, such as font weight, size, and color. This gives web developers the flexibility to experiment with different typography and create the perfect look and feel for their website.

In conclusion, while SimSun is a popular and traditional choice for Chinese text on web pages, it may not always be suitable for English text or combined with other typefaces. CSS allows web developers to customize their typography and create the perfect look and feel for their website.