What is the difference between device mode from the normal resizing?

Hi

Do adaptiv, look in chrome: if you include a Device mode and in there change the resolution, then the block breaks at 1000px, and if you change the resolution of the browser window, then jumped down to 1150px. What is the difference between them?
July 9th 19 at 10:49

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July 9th 19 at 10:51
Maybe because 
<meta name="viewport" content="width=device-width, initial-scale=1">

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