body {background-color:lightblue;}
h1   {color:blueviolet;font-size: 35px;}
h2   {color:darkmagenta;font-size: 20px;}
h3   {color:Red;font-size: 15px;}
p    {color:black;}
.mo {font-family: monospace;font-size: 15px;}
.rouge {color: red;}            
.bleu {color: blue;}            
.violet {color: violet;}            
.magenta {color: magenta;}            
.vert {color: green;}            
.gris {color: gray;}            
pre { display: block;font-size: 15px; font-family: monospace;  white-space: pre; }