/* reset stuff */
* {
    box-sizing: border-box;
}
a,
abbr,
acronym,
address,
applet,
article,
aside,
audio,
b,
big,
blockquote,
body,
canvas,
caption,
center,
cite,
code,
dd,
del,
details,
dfn,
div,
dl,
dt,
em,
embed,
fieldset,
figcaption,
figure,
footer,
form,
h1,
h2,
h3,
h4,
h5,
h6,
header,
hgroup,
html,
i,
iframe,
img,
ins,
kbd,
label,
legend,
li,
mark,
menu,
nav,
object,
ol,
output,
p,
pre,
q,
ruby,
s,
samp,
section,
small,
span,
strike,
strong,
sub,
summary,
sup,
tbody,
td,
tfoot,
th,
thead,
time,
tr,
tt,
u,
ul,
var,

article,
aside,
details,
figcaption,
figure,
footer,
header,
hgroup,
main,
menu,
nav,
section {
  display: block;
}
body,
html {
  height: 100%;
}
a img {
  border: none;
}
blockquote {
  quotes: none;
}

caption,
td,
th {
  text-align: left;
  font-weight: 400;
  vertical-align: middle;
}
html {
  -webkit-text-size-adjust: 100%;
  -ms-text-size-adjust: 100%;
  text-size-adjust: 100%;
}
body {
  font-feature-settings: "kern" 1, "onum" 1, "liga" 0;
}
b,
strong {
  font-weight: 700;
}
em,
i {
  font-style: italic;
}
ul {
  list-style-type: square;
}
img,
video {
  display: block;
  width: 100%;
}
button {
  cursor: pointer;
  border: none;
  outline: 0;
  margin: 0;
  padding: 0;
  font-size: 1rem;
}
sub {
  bottom: -0.25em;
}
.hide-accessible {
  width: 1px;
  height: 1px;
  overflow: hidden;
  position: absolute;
}
.hide-invisible {
  visibility: hidden;
}
.hide-display {
  display: none;
}
.tk-whitney {
  font-family: Helvetica, Arial, sans-serif;
  letter-spacing: 0.04em;
  font-weight: 300;
}
.loaded-whitney .tk-whitney {
  font-family: "Whitney SSm A", "Whitney SSm B", Helvetica, Arial, sans-serif;
  letter-spacing: normal;
}
.tk-mercury {
  font-family: Georgia, Times, serif;
  letter-spacing: 0.04em;
  font-weight: 400;
}
.loaded-mercury .tk-mercury {
  font-family: "Mercury SSm A", "Mercury SSm B", Georgia, Times, serif;
  letter-spacing: normal;
}
body {
  background: #fff;
  font-size: 17px;
}

body {
  font-size: 17px;
  font-weight: 400;
  background-color: #fffffc;
  color: #1a1a1a;
  line-height: 1.8;
  font-family: "Whitney SSm A", "Whitney SSm B", Helvetica, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

main {
  padding: 1.75rem;
  padding-bottom: 5rem;
}

p {
  margin: 2rem 0;
}

a {
  color: #1a1a1a;
  text-decoration: none;
  border-bottom: 1px dotted currentColor;
}
ol,
ul {
  list-style-type: none;
}

header {
  z-index: 1000;
  margin: 1rem auto;
  max-width: 12rem;
  padding: 1rem;
}
header a.logo {
  display: block;
  border: none;
}


.intro {
  max-width: 50rem;
  margin: 4rem auto 2rem auto;
}

.intro p {
  max-width: 50rem;
  margin-left: auto;
  margin-right: auto;
}

.hed {
  font-family: "Mercury SSm A", "Mercury SSm B", Georgia, serif;
  font-size: 2rem;
  font-weight: bold;
  line-height: 1.4;
  margin-bottom: 3rem;
  margin-left: auto;
  margin-right: auto;
  max-width: 50rem;
}

.hed a {
  border: none;
}

.byline {
  color: #777;
  height: 100%;
  overflow: hidden;
}

.byline__author {
  float: left;
  /*display: block;*/
}

.byline__date {
  float: right;
}

.disclaimer {
  clear: both;
  font-size: 0.9rem;
}

.update {
  background-color: #eee;
  font-size: 0.9rem;
  padding: 1rem;
}

.video-example {
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-flex-wrap: wrap;
  -ms-flex-wrap: wrap;
  flex-wrap: wrap;
  -webkit-align-items: flex-start;
  -ms-flex-align: flex-start;
  align-items: flex-start;
}


.back-to-blog {
  text-align: center;
}