Someone asked me about these and I'm not sure if they exist but I like the idea...
Say you have an ecom site or directory site, with pages that are 3 columns. The left sidebar has all the sorting/filters, middle has the results of the searches and right sidebar has maybe a combo of ads, support pages, whatever.
For mobile, those 3 columns won't work in a single column display. The right one can go away, but the left one is needed to complete tasks.
You know how how on some cars and music apparatus, how if you tap a button the CD is either inserted or ejected? (or you just press on the CD and it goes in).
I'm thinking of how the left sidebar could perform like a drawer that slides out into view, you make your selections for sorting, close it to slide it away and the search result is in full view.
There has to be something like this already out there. Has anyone seen it or knows where I might the CSS to make one?
Are there any SEO concerns for something like this? I'm thinking as long as the drawer can be slid back to the side out of view, this is ok.