h1
{
   color: red;
font-size:50px;
text-align: center;
border: 4px ridge red;
}

h2
{ 
color:red;
font-size:xx-large;
text-align: center;
border: 4px ridge red;
}

h3
{ 
color:red;
font-size:x-large;
text-align: center;
border: 4px ridge red;
}


p
{
font-size: medium; 
font-family: "Arial", "Trebuchet MS", Georgia, serif;
text-indent: 50px;
text-align:left;
font-style:italic; 
font-weight: bold;
text-align:center;
}



body 
{
   background-color: black; 
   color:white;
background-image: url("image/bo.jpg"); 
background-attachment: fixed; 
background-repeat:repeat;
background-position: 
}

p:first-letter
{
   font-weight: bold; 
   font-size: 1.5em; 
   color: red;
}


.chiffres_romains
{
   list-style-type: upper-roman;
}
.chiffres
{
list-style-type: decimal;
}

a img/
{
border: red;
font-size:large;
}

h4
{
text-align: center;
color:red;
font-size:20px;
text-decoration: underline;

}

.contenu
{
   text-align: center;
  
 }