Natural box layout model

Unfortunately, browsers do not always implement the default CSS rules that we would like. One rule which should almost definitely be added to every browser ever is the following, applying border-box box-sizing to, well, everything.

/* apply a natural box layout model to all elements */
* { -moz-box-sizing: border-box; -webkit-box-sizing: border-box; box-sizing: border-box; }

Thanks go to Paul Irish if I remember correctly.