The fixed menu on the left is fixed on the left, and the up and down movement is fixed. The content block is on the right. How to achieve positioning?
As shown in the picture
Sorry, I didn’t make it clear. The effects of the above pictures are piled together, so I want to separate them as shown below:
Please help me take a look , the positioning is always bad, thank you
If it doesn’t work, you can use positioning.
Website layout, nothing difficult.