.content {
  opacity: 0;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: horizontal;
  -webkit-box-direction: normal;
      -ms-flex-direction: row;
          flex-direction: row;
  width: 100%;
  height: 100%;
  transition: opacity 1s ease;
}

body.ready .content {
  opacity: 1;
}

/* Headers */

.header {
  position: absolute;
  z-index: 1;
  top: 0;
  width: 239px;
  padding: 0;
}

.logo {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  width: 240px;
  height: 60px;
  padding: 10px 0 10px 55px;
  color: white;
  text-decoration: none;
  background-image: url(../img/icons/icon-doc.png);
  background-size: 32px;
  background-position: 12px 13px;
  background-repeat: no-repeat;
}

header {
  position: -webkit-sticky;
  position: -moz-sticky;
  position: -o-sticky;
  position: -ms-sticky;
  position: sticky;
  top: 0;
  z-index: 2;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  -webkit-box-pack: justify;
      -ms-flex-pack: justify;
          justify-content: space-between;
  width: 100%;
  height: 60px;
  padding-left: 20px;
  padding-right: 20px;
  border-bottom: 1px solid #000;
}

.logo, h2 {
  opacity: .6;
  font-size: 22px;
  letter-spacing: 2px;
  text-transform: uppercase;
  font-weight: 200;
}

.logo:hover {
  opacity: 1;
}

/* Panes */

.pane {
  position: relative;
  height: 100%;
}

/* Sidebar */

.sidebar {
  width: 240px;
  padding-top: 60px;
  border-right: 1px solid #000;
}

.navigation {
  overflow-y: auto;
  width: 100%;
  height: 100%;
  padding: 10px 0 20px 20px;
}

.navigation ul {
  height: 30px;
  overflow-y: hidden;
  -webkit-transition:opacity .4s ease;
  transition: opacity .4s ease;
}

.navigation ul li {
  position: relative;
}

.navigation ul li:before {
  content: "";
  display: block;
  position: absolute;
  top: 3px;
  left: 2px;
  width: 1px;
  height: 14px;
  background-color: white;
}

.navigation ul li:first-child:before {
  display: none;
}

.navigation a {
  display: block;
  padding-left: 15px;
  color: #FFF;
  text-decoration: none;
  font-size: 12px;
  line-height: 20px;
  text-transform: uppercase;
}

.navigation ul li:first-child a {
  padding-left: 0;
  padding-top: 10px;
  padding-bottom: 10px;
}

.navigation ul li a,
.navigation ul li:before {
  opacity: .4;
  -webkit-transition:opacity .4s ease, color .4s ease;
  transition: opacity .4s ease, color .4s ease;
}

.navigation ul.active a {
  opacity: .7;
}

.navigation ul li:hover a,
.navigation ul li:hover:before {
  -webkit-transition:none;
  transition: none;
  opacity: 1;
}

.navigation ul li.active a,
.navigation ul li.active:before {
  opacity: 1;
  color: currentColor;
}

.navigation ul li.active:before {
  background-color: currentColor;
}

.navigation ul.active li:first-child a,
.navigation ul.active li:first-child a:hover {
  opacity: 1;
  color: currentColor;
}

/* Code */

.code-examples {
  width: 50%;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
      -ms-flex-direction: column;
          flex-direction: column;
  border-left: 1px solid #000;
}

.code-pane {
  position: relative;
  border-bottom: 1px solid #000;
}

.code-pane-js {
  height: 66%;
}

.code-pane-html {
  height: 34%;
}

.code-header {
  position: absolute;
  top: 0;
}

pre {
  overflow: auto;
  font-family: 'Space Mono', monospace;
  line-height: 22px;
}

.code-output {
  width: 100%;
  height: 100%;
  padding: 80px 20px 20px 20px;
}

/* Demos */

.demos {
  overflow-y: scroll;
  width: calc(50% - 240px);
  min-width: 330px;
}

article {
  width: 100%;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
      -ms-flex-direction: column;
          flex-direction: column;
  -ms-flex-wrap: wrap;
      flex-wrap: wrap;
  -webkit-box-align: start;
      -ms-flex-align: start;
          align-items: flex-start;
  -webkit-box-pack: start;
      -ms-flex-pack: start;
          justify-content: flex-start;
}

.demos-title {
  opacity: 1;
}

.demo {
  position: relative;
  z-index: 1;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
  width: 100%;
  min-height: 200px;
  padding-top: 35px;
  border-bottom: 1px solid #000;
  cursor: pointer;
}

.demo.controls {
  padding-top: 50px;
}

.demo.active.controls {
  cursor: default;
}

.demo:before {
  content: "";
  position: absolute;
  z-index: 0;
  top: 0;
  left: 0;
  opacity: 0;
  display: block;
  width: 100%;
  height: 100%;
  background-color: currentColor;
}

.demo.active:before {
  opacity: .05;
}

.demo-content {
  position: relative;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
      -ms-flex-direction: column;
          flex-direction: column;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
  text-align: center;
  width: 290px;
  height: 100%;
}

#penner .demo-content {
  padding: 25px 0;
}

#timeline .demo-content,
#motionpath .demo-content {
  padding: 40px 0;
}

.demo-title {
  position: absolute;
  top: 0;
  left: 20px;
  width: calc(100% - 40px);
  padding: 23px 0;
  font-size: 12px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: #FFF;
  opacity: .7;
}

.active .demo-title {
  color: currentColor;
  opacity: 1;
}

.line {
  width: 100%;
  padding: 1px 0px;
}

.player {
  opacity: .4;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
  padding-top: 20px;
  padding-bottom: 10px;
}

.player button {
  position: relative;
  display: block;
  margin: 0 0 0 -1px;
  padding: 5px 10px;
  font-size: 12px;
  text-transform: uppercase;
  border: 1px solid currentColor;
  background-color: transparent;
  color: currentColor;
}

.player button:focus {
  outline: none;
}

.active .player {
  opacity: 1;
}

.active .player button:hover:after {
  content: '';
  opacity: .3;
  position: absolute;
  left: 0;
  top: 0;
  display: block;
  width: 100%;
  height: 100%;
  background-color: currentColor;
}

.player button:first-child {
  margin-left: 0;
}

.player input {
  margin-left: 10px;
}

.text-output {
  padding-top: 10px;
  padding-bottom: 10px;
  font-size: 16px;
  color: currentColor;
  text-align: center;
  background-color: transparent;
  border: 1px solid currentColor;
}

.log {
  width: 100%;
  height: 22px;
  background: transparent;
  color: currentColor;
  border: none;
  font-size: 16px;
  text-align: center;
}

.logs {
  pointer-events: none;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
      -ms-flex-direction: column;
          flex-direction: column;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  position: absolute;
  width: 100%;
  height: 100%;
}

.log:focus {
  outline: none;
}

input.progress {
  cursor: ew-resize;
}

.square,
.circle {
  pointer-events: none;
  position: relative;
  width: 28px;
  height: 28px;
  margin: 1px;
  background-color: currentColor;
  font-size: 12px;
}

.circle {
  border-radius: 50%;
}

.triangle {
  pointer-events: none;
  position: relative;
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 0 14px 24px 14px;
  border-color: transparent transparent currentColor transparent;
}

.small {
  width: 18px;
  height: 18px;
}

.large {
  width: 48px;
  height: 48px;
}

.stretched {
  height: 2px;
}

.shadow {
  position: absolute;
  opacity: .2;
}

.motion-path {
  position: relative;
  width: 256px;
  margin: auto;
}

.follow-path {
  position: absolute;
  top: -9px;
  left: -9px;
}

.align-center {
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
}

#cssProperties .el {
  -webkit-transform: translate3d(0,0,0);
          transform: translate3d(0,0,0);
}

/* Responsive */

.header {
  width: 100%;
}

.sidebar,
.code-examples {
  display: none;
}

.demos {
  top: 60px;
  width: 100%;
  min-width: auto;
  height: calc(100% - 60px);
  -webkit-overflow-scrolling: touch;
}

@media (min-width: 600px) {
  .header {
    width: 239px;
  }
  .sidebar {
    display: inherit;
  }
  .demos {
    top: 0;
    width: calc(100% - 240px);
    height: 100%;
  }
}

@media (min-width: 1100px) {
  .code-examples {
    display: inherit;
  }
  .demos {
    width: calc(50% - 240px);
  }
}