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6,951 PointsHow does adding d-sm-block set the the image to not show in small but other screen sizes?
This is in the very end the of the video.
1 Answer
Steven Parker
231,261 PointsMany of the classes used by Bootstrap activate media queries implemented in CSS to control behavior for different sized windows.
If you really want to see the technical details, you can actually read the CSS file itself (but it's rather complex!).