/* CSS Document */ 

body { 
background-color: white; 
margin: 0px; 
} 

#global{ 
width: 1100px; 
background-color:white; 
margin: auto; 
} 

#header{ 
width: 1154px; 
background-color:white; 
text-align:center; 
border:none; 
float:left; 
} 
#contenu{ 
width: 1154px; 
float:left; 
} 
#footer{ 
width: 1094px; 
background-color:white; 
padding:30px; 
float:left; 
} 

p{ 
color:blue;
text-align:justify; 
} h4{ 
color:white;
text-align:justify; 
} 

img{ 
border:none; 
} 

a{color:#FFFFFF; 
} 


et ensuite sur la 1ere page, j'ai rajouté :