How is the mobile preview effect, which is similar to the mint-ui official website, which can be embedded in the PC page?

similar to the mint-ui official website, it can show how the mobile preview effect of the PC page is made.
is shown in the following figure. The figure on the right shows the mobile preview effect of the PC page
http://mint-ui.github.io/docs.

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preliminary understanding is to embed a link with iframe. But how to achieve this effect in the Vue-cil single-page application environment:
Click on the left PC page, the right mobile page will also change. Show the corresponding things

Apr.20,2021

two items wow, one is displayed on pc, the other is displayed on mobile, and an iframe, is inserted into the pc page to insert your mobile page

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MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b31bb1-2bdaf.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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