I am trying to do a responsive design with using HTML and CSS, here is my problem:
If you only resize the window, the layout fits and if you only zoom, layout fits again, I have no problem with it, but if you zoom when the window is resized, layout breaks a little.
Is it important to find a solution about this? I have no problem with 200%, 300% levels of zoom, mostly 400% or 500% make some problems to me.
In general, a responsive layout shouldn't need to be zoomed because it fits the device/browser window and has been designed to be "finger-friendly". To help with that, you can use this
viewport
to stop users from zooming: