The length of the page . While web page layout designers constrain the width of the web page in combination with the actual situation, the design of the length of the web page has strong randomness and looseness, which can be 1 to 3 screen widths. Among them, the overall download speed of the web page, the preview frugality of the web page preview staff, the amount of information data included, the beauty of the web page types and functions are analyzed and considered. The length of the web page also has a large gap. Generally, small and medium web pages should be about 1 to 2 screens long. Larger websites in China want to add richer data information to the main page, so that previewers can more easily obtain the required data information. The page layout designer can set the length of the main page of the web page to about 3 screens, which is more than 3 screens.