body{background-color:white}
h1,h2 {width:95%;clear:both;color:#ececec;font-weight:400}
p {width:16.5cm;color:black}
ul.p {list-style-image:none}

div.code {border:4px solid silver;}
code.nr {border:1px solid white;border-right-color:gray;}
code.cd {border:1px solid white;color:black}