Understanding of CSS

CSS stands for Cascading Style Sheet.
CSS is a style specific to format HTML pages to be more interesting that can not be done by the HTML tags only.
CSS is in the standardization by W3C, so it can run well on all browsers.


CSS Advantages:

1. With CSS, you will be able to shorten the time you work to create a Web page.
2. HTML file size will be smaller, because the CSS file is located outside of HTML (if using external stylesheet).

The weakness of the CSS
Not all browsers interpret CSS code in the same way. So sometimes, the web with CSS looks good in one browser, but disordered in the other browser. So you have to check the view that all visible in both the browser and add code-browser-specific code if a specific need to view your web looks good in all browsers.