This template produces a box with links to a chủ đề or to multiple portals. It is most often used in the "See also" section of an article.Within articles, this template is meant to be placed at the bottom of the article in the Xem thêm section. If there is no Xem thêm section, you can put it in the Liên kết ngoài section instead; there is no need to create a new section just to house this template. If there is no Liên kết ngoài section either, just put it below the article text in the place that seems most appropriate.There are no particular rules about the placement of portals on other kinds of page.The portal image names are stored in subpages of Mô đun:Portal/images, organised by the first letter of the portal name. For example, the first letter of Cổng thông tin:Ngư nghiệp is "N", so the image name is stored at Mô đun:Portal/images/n. If there is an entry for a portal on the correct page then the corresponding image will be shown next to the portal link. If no image is found then Tập tin:Portal-puzzle.svg will be shown instead. It is also possible to specify aliases for portal images. For example, the code {{Chủ đề|Detroit}} produces the same image as the code {{Chủ đề|Metro Detroit}}. The "Detroit" alias is found on the page Mô đun:Portal/images/aliases.The image-detection algorithm is case-insensitive. For example, the code {{Chủ đề|Detroit}} will produce the same image as the code {{Chủ đề|detroit}} (although the portal links will be different). Portal names are stored in lower case in the image subpages, and input is converted to lower case before being checked.To add new images to the list, please 12+2021&section=new make a protected edit request at Template talk:Portal to get an administrator to edit the correct subpage for you. Portal images must be either in the public domain or available under a free license that allows commercial reuse and derivative works; fair-use images are not acceptable.The following tracking category lists instances where the template is used incorrectly:Bản mẫu tạo chủ đề chínhBản mẫu định dạng trang chủ đề chínhBản mẫu cấu hình liên kếtCác bản mẫu này được sử dụng để định dạng các bài viết trên các trang con{{Selected X}}—Generic template for situations not listed hereafter.Bản mẫu liên quanDữ liệu bản mẫu cho Cổng thông tinA template to create a list of portalsTham số bản mẫuInserts the portal image and text. Further portals can be added to the template by increasing the numberInsert the portal image and textInsert the portal image and textIf set to yes, the portal appears on the left side of the page instead of the right.Alters the margin size. Any valid CSS margin is acceptedIf set to yes, a line break is inserted after the portal name and before the word portalThis sets a custom box width in pixels.