_src/_sass/_base.scss

body {
  min-height: 100%;
  background: #fff;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1 {
  font-size: 36px;
  font-weight: $font-weight-bold;
}
h2 {
  font-size: 32px;
  font-weight: $font-weight-bold;
}

h3 {
  font-size: 18px;
  font-weight: $font-weight-bold;
}

h4 {
  font-size: 18px;
  font-weight: $font-weight-medium;
}

p {
  margin: 0;
  color: $color-text-systemml;
  margin: 0 0 1em 0;
}

#{if(&, "&", "*")}.indent {
  margin-left: 2.6em;
}

pre {
  padding: 2em;
  background: #ffffff;
  border: 1px solid #e0e0e0;
  // responsive pre tags
  word-break: break-all; /* webkit */
  word-wrap: break-word;
  white-space: pre;
  white-space: -moz-pre-wrap; /* fennec */
  white-space: pre-wrap;
  white-space: pre\9; /* IE7+ */
}

code {
  overflow: scroll;
}

.text-center {
  text-align: center;
}

a {
  color: $color-systemml-accent;
  -moz-transition: all 0.2s ease-in-out;
  -webkit-transition: all 0.2s ease-in-out;
  transition: all 0.2s ease-in-out;
  #{if(&, "&", "*")}:hover {
    color: $color-systemml-accent-dark;
  }
}

hr {
  color: green;
  width: 80em;
}

ol {
  padding: 0;
}

figure {
  margin: 0;
}

.img-border {
  border: 1px solid #e0e0e0;
  margin: 1em 0 2em 0; 
}