body {
  max-width: 850px;
  margin: 0 auto;
  padding: 20px;
  line-height: 1.6;
  background-color: #ffffff;
  color: #000000;
  border: 3px solid #000000;
}

/* header and footer areas */
.menu { 
  padding: 10px 0; 
  border-bottom: 2px solid #000000;
  margin-bottom: 15px;
}
.menu li { 
  display: inline-block; 
  margin-right: 15px;
}
.article-meta, .menu a {
  text-decoration: none;
  background: #c0c0c0;
  padding: 4px 8px;
  border: 2px outset #dfdfdf;
  color: #000000;
  font-weight: bold;
  display: inline-block;
}
.menu a:active {
  border-style: inset;
}
.menu, .article-meta, footer { text-align: center; }
.title { 
  font-size: 1.3em; 
  font-weight: bold;
  border-bottom: 2px solid #000000;
  padding-bottom: 8px;
}
footer { 
  border-top: 2px solid #000000;
  margin-top: 30px;
  padding-top: 15px;
}
footer a { 
  text-decoration: underline;
  color: #0000ff;
}
hr {
  border: none;
  border-top: 2px solid #000000;
  margin: 20px 0;
}

/* code */
pre {
  border: 2px solid #000000;
  background-color: #f0f0f0;
  padding: 12px;
  overflow-x: auto;
  font-family: "Courier New", monospace;
}
code { 
  background: #f0f0f0;
  padding: 2px 4px;
}
pre code { 
  background: none;
  padding: 0;
}

/* misc elements */
img, iframe, video { 
  max-width: 100%;
  border: 2px solid #000000;
  margin: 10px 0;
}
main { hyphens: auto; }
a {
  color: #0000ff;
  text-decoration: underline;
}
a:visited {
  color: #800080;
}
blockquote {
  background: #f0f0f0;
  border-left: 4px solid #000000;
  border-right: 2px solid #000000;
  padding: 10px 15px;
  margin: 15px 0;
}

table {
  margin: 15px auto;
  border-collapse: collapse;
  border: 2px solid #000000;
}
table thead th { 
  background: #c0c0c0;
  border: 2px solid #000000;
  padding: 6px;
  font-weight: bold;
}
th, td { 
  padding: 8px; 
  border: 1px solid #000000;
}
tbody tr:nth-child(odd) { background: #ffffff; }
tbody tr:nth-child(even) { background: #f0f0f0; }