You can switch to that model using "box-sizing: border-box", and thats the default for bootstrap and a lot of frameworks these days. I actually much prefer that

You can switch to that model using "box-sizing: border-box", and thats the default for bootstrap and a lot of frameworks these days. I actually much prefer that to what ended up being the default, but maintaining a stylesheet that had to account for the two different models was a big pain.