Currently it’s not possible to set a width ‘auto’ for a container, meaning it takes up all available width taking in account any margins set on the element itself. Height has the ‘auto’ value, but width is missing it.
Currently you can work around it by setting it to ‘Custom’ and leaving the value blank, but that’s not exactly intuitive. The value of ‘auto’ is handy when you just want an element to take up the available space of the container, and not have to worry about subtracting margins from the screen dimensions.
