/**
 * 1. Reset box-sizing on all elements to border-box.
 *
 *    This uses Jon Neal's method of setting the default box-sizing on the root
 *    html element and then having all other elements inherit box-sizing
 *    (https://css-tricks.com/inheriting-box-sizing-probably-slightly-better-best-practice/).
 *    This method seems to cause the least number of headaches and override
 *    issues.
 */
html
  box-sizing: border-box /* 1 */

*, *::before, *::after
  box-sizing: inherit /* 1 */