Currently, almost all commercial portal websites have three columns, with the logo + banner on them. In fact, because of the large information and frequent updates, the portal website should be designed with full consideration of scalability. I think the drop-down feature can be fully utilized to fully consider the design in the upper left corner. The subject strives for a clear and concise structure. Let's take a look at the design of several portals.
The following website is a cartoon website with a large advertisement bar, but it is designed to be eye-catching and not messy. The image uses the oblique angle, which is uniform and not rigid.
The following website uses a combination of curves and straight lines. The blue-gray dominant color and the screen are quiet but not dirty. The color here is very difficult and requires careful debugging. The color block is separated and simple and clear.
The following website features white space usage. In fact, the portal can also be blank. This station gives people a sense of space and comfort (the use of dotted lines was once very popular ).