body {
  background: #f7f7f7;
}

h3 {
  font-size: 21px;
  line-height: 30px;
  margin-bottom: 4px;
}

h4 {
  font: 14px/21px "HelveticaNeue","Helvetica Neue",Helvetica,Arial,sans-serif;
  font-weight: bold;
}

.nav {
  background: #ccc;
}

.header {
  margin: 20px 0;
}

.header h1 {
  line-height: 150%;
}

.header h1 a {
  background: transparent;
}

.header h1 a:hover {
  background: #ddd;
}


.portfolio img { 
  border: 10px solid #fff;
  margin-bottom: 20px;
}

@media only screen and (max-width: 767px) {
  .portfolio img { 
    width: 100%;
  }

}

.gist-file  pre {
  height: 500px;
  overflow: auto;
}

a {
  background: #ddd;
  text-decoration: none;
}

a:hover {
  background: #ccc;
}

.columns.four {
  /*background: #fff;*/
}

.icon-links {
  text-align: right;
}

.icon-links a {
  background: transparent;
}

.icon-links a svg, svg.icon {
  width: 2em;
  height: 2em;
  vertical-align: -.125em;
  background: transparent;
}