Because of a question posed regarding the use of tab characters to create a column-like layout in Sandvox, I thought I would try to implement Matthew James Taylor's excellent CSS solutions for creating various types of columnar layouts.
This turned out to be relatively easy and, after downloading Matthew's CSS and HTML code, I Code Injected the CSS into Sandvox (this can be done at Site or Page level, depending on requirements) and then created a Raw HTML object for each layout, filling this with the relevant HTML.
Now, if all that seems too complex (though, believe me, like most things HTML and CSS, it's a lot more complex to explain than to do), then you might wish to consider