.align-right { float:right; margin: 0 0 15px 15px; }
.align-left { float:left; margin: 0 15px 15px 0; }

.title  { font-size: 0%; }
#postamble p, #preamble p { font-size: 90%; margin: .2em; }

  p.verse { margin-left: 3%; }
  pre {
    border: 1px solid #ccc;
    box-shadow: 3px 3px 3px #eee;
    padding: 8pt;
    font-family: monospace;
    overflow: auto;
    margin: 1.2em;
  }
  pre.src {
    position: relative;
    overflow: visible;
    padding-top: 1.2em;
  }
  pre.src:before {
    display: none;
    position: absolute;
    background-color: white;
    top: -10px;
    right: 10px;
    padding: 3px;
    border: 1px solid black;
  }
  pre.src:hover:before { display: inline;}
  pre.src-sh:before    { content: 'sh'; }
  pre.src-bash:before  { content: 'sh'; }
  pre.src-emacs-lisp:before { content: 'Emacs Lisp'; }
  pre.src-R:before     { content: 'R'; }
  pre.src-perl:before  { content: 'Perl'; }
  pre.src-java:before  { content: 'Java'; }
  pre.src-sql:before   { content: 'SQL'; }