article,
aside,
figcaption,
figure,
footer,
header,
main,
nav,
section {
  display: block;
}

body {
  width: 900px;
  margin: 0 auto;
  padding: 20px 10px 10px;
  font: 1em/1.8 -apple-system,
    "Apple SD Gothic Neo",
    "Malgun Gothic",
    AppleGothic,
    NanumGothic,
    sans-serif;
  -webkit-font-smoothing: antialiased;
  color: #0d0d0d;
  background: #edf5fB top 2% right 3% / 165px 158px url('images/well-done.gif') no-repeat;
  background-blend-mode: darken;
}

.clearfix {
  overflow: hidden;
  display: block;
  clear: both;
  _height: 1%;
}

a:link,
a:visited {
  font-weight: bold;
  color: #000;
  -webkit-transition: color 0.15s ease-out;
  transition: color 0.15s ease-out;
  border-bottom: 1px solid #999;
  text-decoration: none;
}

a:hover,
a:focus {
  color: #b30000;
  border-bottom-color: #b30000;
}

p {
  margin: 0.2em 0.2em 1em;
}

nav ul {
  margin: 0;
  padding: 0;
  font-size: 1.14em;
  overflow: hidden;
}

nav ul li {
  float: left;
  display: block;
  margin-right: 1em;
  line-height: 2;
}

.heading {
  margin-top: 3em;
  text-align: center;
}

h1 {
  margin-bottom: 0.5em;
  font-size: 2.5em;
  font-weight: bold;
  color: #b30000;
}

h1 a {
  text-decoration: none;
}

h1 img,
.popclip {
  vertical-align: middle;
  margin-right: 3px;
}

.dashed-shadow {
  position: relative;
  display: inline-block;
  letter-spacing: .1em;
}

@-webkit-keyframes dash-animation {
  0% {
    background-position: 0 0;
  }

  100% {
    background-position: 100% 0;
  }
}

@keyframes dash-animation {
  0% {
    background-position: 0 0;
  }

  100% {
    background-position: 100% 0;
  }
}

.dashed-shadow::before {
  content: " ";
  display: block;
  position: absolute;
  top: -4px;
  left: -4px;
  bottom: -2px;
  right: -2px;
  z-index: 1;
  background-image: linear-gradient(45deg, #edf5fB 12.5%, rgba(232, 227, 199, 0) 12.5%, rgba(232, 227, 199, 0) 37.5%, #edf5fB 37.5%, #edf5fB 62.5%, rgba(232, 227, 199, 0) 62.5%, rgba(232, 227, 199, 0) 87.5%, #edf5fB 87.5%);
  background-size: 3px 3px;
}

.dashed-shadow::after {
  z-index: 2;
  content: attr(data-text);
  position: absolute;
  left: -4px;
  top: -4px;
  color: currentColor;
  text-shadow: 3px 3px #edf5fB;
}

.extension {
  display: inline-block;
  font-size: 0.8em;
  color: #000;
  -webkit-transform-origin: bottom left;
  transform-origin: bottom left;
  -webkit-transform: rotate(-4deg);
  transform: rotate(-4deg);
  text-shadow: 2px 2px 5px gray;
  -webkit-transition: -webkit-transform .3s ease-in;
  transition: -webkit-transform .3s ease-in;
  transition: transform .3s ease-in;
  transition: transform .3s ease-in, -webkit-transform .3s ease-in;
}

.heading:hover .dashed-shadow::before {
  -webkit-animation: dash-animation 30s infinite linear;
  animation: dash-animation 30s infinite linear;
}

.heading:hover .extension {
  -webkit-transform: rotate(0deg);
  transform: rotate(0deg);
}

.subheading {
  margin-bottom: 0.5em;
  font-size: 1.2em;
  color: #495057;
}

.version-history {
  float: right;
  margin: 10px 20px 0;
}

a.button {
  border: none;
}

.button {
  position: relative;
  margin: 10px 0 0 5px;
  padding: 6px 40px 6px 15px;
  font-size: 0.9em;
  color: #fff;
  background-color: #3bb3e0;
  background-image: -webkit-gradient(linear, left bottom, left top, from(rgb(44, 160, 202)), to(rgb(62, 184, 229)));
  background-image: linear-gradient(to top, rgb(44, 160, 202) 0%, rgb(62, 184, 229) 100%);
  border-radius: 5px;
  -webkit-box-shadow: inset 0 1px 0 #2ab7ec, 0 5px 0 0 #156785, 0 10px 5px #999;
  box-shadow: inset 0 1px 0 #2ab7ec, 0 5px 0 0 #156785, 0 10px 5px #999;
  -webkit-transition: color 0.15s ease-out;
  transition: color 0.15s ease-out;
}

.button:hover,
.button:focus {
  color: #fff;
}

.button:active {
  top: 3px;
  background-image: -webkit-gradient(linear, left bottom, left top, from(rgb(62, 184, 229)), to(rgb(44, 160, 202)));
  background-image: linear-gradient(to top, rgb(62, 184, 229) 0%, rgb(44, 160, 202) 100%);
  -webkit-box-shadow: inset 0 1px 0 #2ab7ec, 0 2px 0 0 #156785, 0 5px 3px #999;
  box-shadow: inset 0 1px 0 #2ab7ec, 0 2px 0 0 #156785, 0 5px 3px #999;
}

.button::before {
  position: absolute;
  top: 50%;
  right: 15px;
  width: 18px;
  height: 18px;
  margin-top: -9px;
  content: "";
  background-color: #2591b4;
  background-image: url(images/arrow_down.svg);
  background-repeat: no-repeat;
  background-position: center center;
  background-size: 60%;
  border-radius: 50%;
  -webkit-box-shadow: inset 0 1px 0 #052756, 0 1px 0 #60c9f0;
  box-shadow: inset 0 1px 0 #052756, 0 1px 0 #60c9f0;
}

.button:active::before {
  top: 50%;
  margin-top: -12px;
  -webkit-box-shadow: inset 0 1px 0 #60c9f0, 0 3px 0 #0e3871, 0 6px 3px #1a80a6;
  box-shadow: inset 0 1px 0 #60c9f0, 0 3px 0 #0e3871, 0 6px 3px #1a80a6;
}

.dot {
  color: #ccc;
}

.emphasis {
  color: #18206a;
}

strong,
.first-line {
  color: #333;
}

em {
  font-weight: bold;
}

.content {
  margin-top: 4em;
  margin-bottom: 2em;
  padding: 0 20px;
  text-align: justify;
  word-break: keep-all;
}

.figure {
  float: left;
  margin-right: 10px;
  shape-outside: circle(55%);
}

.first-line {
  font-size: 1.1em;
  font-weight: bold;
  text-shadow: 2px 2px 5px rgba(171, 171, 171, 0.9);
}

.feature-image {
  display: block;
  margin: 0 auto 30px;
  max-width: 100%;
  height: auto;
}

.clearfix {
  overflow: hidden;
  display: block;
  clear: both;
  _height: 1%;
}

.arrow-down {
  display: inline-block;
  font-weight: bold;
  color: #5778F3;
  -webkit-animation: bounce 2s infinite;
          animation: bounce 2s infinite;
}

@-webkit-keyframes bounce {
  0%, 20%, 50%, 80%, 100% {
    -webkit-transform: translateY(0);
            transform: translateY(0);
  }
  40% {
    -webkit-transform: translateY(-12px);
            transform: translateY(-12px);
  }
  60% {
    -webkit-transform: translateY(-5px);
            transform: translateY(-5px);
  }
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% {
    -webkit-transform: translateY(0);
            transform: translateY(0);
  }
  40% {
    -webkit-transform: translateY(-12px);
            transform: translateY(-12px);
  }
  60% {
    -webkit-transform: translateY(-5px);
            transform: translateY(-5px);
  }
}


code {
  padding: 6px;
  font-size: 1.5em;
  text-align: left;
  color: #495057;
  background-color: #e9e9e9;
  -webkit-user-select: all;
     -moz-user-select: all;
      -ms-user-select: all;
          user-select: all;
}

code .no-select {
  -webkit-user-select: none;
     -moz-user-select: none;
      -ms-user-select: none;
          user-select: none;
}

footer {
  padding: 2em 0 1em;
  font-size: 0.9em;
  text-align: center;
  opacity: 0.6;
  -webkit-transition: opacity 0.2s ease-out;
  transition: opacity 0.2s ease-out;
  border-top: 1px solid #e2e2e2;
}

footer:hover {
  opacity: 1.0;
}

footer small {
  font-size: 14px;
  text-indent: 0;
}

.github {
  margin-top: 15px;
}

.share-container {
  width: 55px;
  margin: 20px auto;
}

/* IE10 Viewport fix */
@-ms-viewport {
  width: device-width;
}

@media only screen and (max-width: 320px) {
  h1 {
    font-size: 2.8em;
  }

  .dashed-shadow {
    letter-spacing: normal;
  }
}

@media only screen and (max-width: 939px) {
  body {
    width: 95%;
    background: #edf5fB;
  }

  .button {
    display: block;
    margin: 1em 10%;
    letter-spacing: .5em;
  }
}