Is the loading of CSS asynchronous? Where does it show?

Is the loading of

CSS asynchronous? Can you give me a chestnut?

Aug.02,2021

what you load with link is Synchronize load, which is the default load, or you can use asynchronous Ajax!

as for litchi, how can we give an example? we can only look at the phenomenon:

The

page references a css file, then opens the browser debug mode, adjusts the network speed to slow 3G mode in the network column, and looks at the page loading status. The loading of the page status will not end until the css is loaded!

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