body {
  margin: 0 auto;
  max-width: 1000px;
  font-size: 1.2em;
  padding:20px 7%;
  position: relative;
  line-height: 1.3;
}
pre {
  padding: 16px;
  overflow: auto;
  line-height: 2.45;
  word-wrap: normal;
  background-color: #f7f7f7;
  border-radius: 3px;
  word-wrap: normal;
  margin-top: 0;
  font: 12px monospace;
  color: #333;
  line-height:20px;
}
h1, h2, h3 {
  font-weight: normal;
}

h1 {
/*  color: #177617;*/
  font-family: serif;
  font-size: 40px;
}
body.index h1 {
/*  display: none;*/
}
body.index h2 {
  max-width: 600px;
  margin-bottom: 30px;
  line-height: 1.4;
  margin: 0 auto;
}
h2 {
/*  color: #177617;*/
  font-family: serif;
  font-size: 24px;
}
h3 {
  margin: 35px 0 10px;
  font-family: sans-serif; 
}
intro {
  margin: 35px 0;
  padding: 9px 0;
  line-height: 1.4;
  text-align: center;
  font-size: 24px;
  background-color: #ddd;
  border: 1px solid #ccc;
  display: block;
/*  border-radius: 5px;*/

}
intro p small {
  max-width: 600px;
  display: inline-block;
}
p {
  margin: 10px 0;
}
article a {
/*  color: #41b7d8;*/
/*  color: #2197b8;*/
  color: #4078c0;
  text-decoration: none;
/*  background-color: #ddd;*/
/*  display: inline-block;*/
/*  padding: 0 6px;*/
}
a:hover {
/*  text-decoration: underline;*/
  background-color: #ddd;
}

/*a { transition: all .2s ease-in-out; }
a:hover { transform: scale(1.1); }*/


.github-link {
  text-align: center;
  margin-bottom: 90px;
}

sidebar {
  position: absolute;
  width: 200px;
  left: 0;
}
main {
  margin-left: 200px;
}

#logo {
  margin-left: 10px;
}

/* Navigation */
/* ---------- */
nav {
  margin: 20px 0 20px 20px;
  font-size: 90%;
}
nav ul {
  display: block;
  list-style-type: none;
  margin: 0;
  padding: 0;
}
nav li {
  display: block;
  margin: 0;
}
nav li a {
  color: black;
  text-decoration: none;
  display: block;
  padding: 2px 0px 2px 10px;
  margin-left:-5px;
}
nav li.current a {
  background-color: #177617;
}
nav li:hover > a {
  background-color: #ccc;
}
nav li.current a {
/*  font-weight: bold;*/
  color: white;
}
nav li a:hover {
/*  text-decoration: underline;*/
}

nav li ul {
  display: none;
}
nav li ul.current-trail,
nav li:hover > ul {
  display: block;
}

nav li li a {
  padding-left: 20px;
}



/* twitter button */
.twitter-btn {
  width: 76px;
  display: inline-block;
  overflow: hidden;
  text-align: left;
  white-space: nowrap;
  vertical-align: top:
  zoom: 1;
  font-size: 13px;
  line-height: 26px;
  font-family: "Helvetica Neue",Arial,sans-serif;
}
.twitter-btn a {
  height: 28px;
  padding: 1px 10px 1px 9px;
  border-radius: 4px;
  position: relative;
  font-weight: 500;
  color: #fff;
  cursor: pointer;
  background-color: #1b95e0;
  border-radius: 3px;
  box-sizing: border-box;
  display: inline-block;
  text-decoration: none;
}
.twitter-btn a:hover {
  background-color: #0c7abf;
}
.twitter-btn a i {
  width: 18px;
  height: 18px;
  top: 4px;
  position: relative;
  display: inline-block;
  background: transparent 0 0 no-repeat;
  background-image: url(data:image/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%2072%2072%22%3E%3Cpath%20fill%3D%22none%22%20d%3D%22M0%200h72v72H0z%22%2F%3E%3Cpath%20class%3D%22icon%22%20fill%3D%22%23fff%22%20d%3D%22M68.812%2015.14c-2.348%201.04-4.87%201.744-7.52%202.06%202.704-1.62%204.78-4.186%205.757-7.243-2.53%201.5-5.33%202.592-8.314%203.176C56.35%2010.59%2052.948%209%2049.182%209c-7.23%200-13.092%205.86-13.092%2013.093%200%201.026.118%202.02.338%202.98C25.543%2024.527%2015.9%2019.318%209.44%2011.396c-1.125%201.936-1.77%204.184-1.77%206.58%200%204.543%202.312%208.552%205.824%2010.9-2.146-.07-4.165-.658-5.93-1.64-.002.056-.002.11-.002.163%200%206.345%204.513%2011.638%2010.504%2012.84-1.1.298-2.256.457-3.45.457-.845%200-1.666-.078-2.464-.23%201.667%205.2%206.5%208.985%2012.23%209.09-4.482%203.51-10.13%205.605-16.26%205.605-1.055%200-2.096-.06-3.122-.184%205.794%203.717%2012.676%205.882%2020.067%205.882%2024.083%200%2037.25-19.95%2037.25-37.25%200-.565-.013-1.133-.038-1.693%202.558-1.847%204.778-4.15%206.532-6.774z%22%2F%3E%3C%2Fsvg%3E);
}
.twitter-btn a span {
  margin-left: 4px;
  white-space: nowrap;
  display: inline-block;
  vertical-align: top;
  zoom: 1;
}