/* Global Remedies
******************/

/* Use border-box by default, globally */
*,
::before,
::after {
  box-sizing: border-box;
}

/*
* Consistent line spacing...
* CSS Inline Layout Module Level 3: https://drafts.csswg.org/css-inline-3/#line-sizing-property
*/
html {
  line-sizing: normal;
}

/* Remove the tiny space around the edge of the page */
body {
  margin: 0;
}

/* Headings
***********/

/* Switch to rem units for headings */
/* @@@ Initial values are based on existing browser defaults */
h1 {
  font-size: 2rem;
}
h2 {
  font-size: 1.5rem;
}
h3 {
  font-size: 1.17rem;
}
h4 {
  font-size: 1rem;
}
h5 {
  font-size: 0.83rem;
}
h6 {
  font-size: 0.67rem;
}

/* Keep h1 margins consistent, even when nested */
h1 {
  margin: 0.67em 0;
}

/* Typography
*************/

/* Overflow by default is bad */
pre {
  white-space: pre-wrap;
}

/*
* 1. Solid, thin horizontal rules
* 2. Remove Firefox `color: gray`
* 3. Remove default `1px` height, and common `overflow: hidden`
*/
hr {
  border-style: solid;
  border-width: 1px 0 0;
  color: inherit;
  height: 0;
  overflow: visible;
}

/* Embedded Elements
********************/

/*
* 1. Block display is usually what we want
* 2. Remove strange space-below when inline
* 3. Responsive by default
*/
img,
svg,
video,
canvas,
audio,
iframe,
embed,
object {
  display: block;
  vertical-align: middle;
  max-width: 100%;
}

/*
* Maintain intrinsic aspect ratios when `max-width` is applied
* (iframe, embed, and object have no intrinsic ratio, set height explicitly)
*/
img,
svg,
video,
canvas {
  height: auto;
}

/*
* There is no good reason elements default to 300px,
* and audio files are unlikely to come with a width attribute
*/
audio {
  width: 100%;
}

/* Old Browsers
***************/

/* Remove the border on images inside links in IE 10 and earlier */
img {
  border-style: none;
}

/* Hide the overflow in IE 10 and earlier */
svg {
  overflow: hidden;
}

/* Default block display on HTML5 elements */
article,
aside,
figcaption,
figure,
footer,
header,
hgroup,
main,
nav,
section {
  display: block;
}

/*
* 1. Add the correct box sizing in IE 10
* 2. Remove the padding in IE 10
*/
[type="checkbox"],
[type="radio"] {
  box-sizing: border-box;
  padding: 0;
}