Why is one of divs not resizing responsive on mobile?
Only one of the divs has a fixed font size ,
where all the other are responsive when using smart mobile :
Site viewable here :
to fix this issue :
You need to add the below to your code :.
This will correct the scaling of elements.
(your button had the issue with scaling, causing the div to scale lower than other elements in the page)
<name="viewport" content="width=device-width, initial-scale=1.0">