/*
Quand qqchose cloche, désactiver ce CSS et ne laisser que w3.css
*/
/*--------------------------------------------------------------*/
/* assurer une interprétation correcte des blocs HTML5 */
header, section, footer, aside, nav, main, article, figure {
    display: block;  margin:5px; padding:8px; 
	/*----border:1px solid red; pour encadrer temporairement tous les blocs ---*/
}
header { background-color:#2153A9; }
nav {    padding:5px; 
}
p {
    text-indent: 20px;
}
p.droite {
    text-align: right; padding-right: 40px;
}
img.left
{
float:left; margin: 50px 0px; margin-top:20px; margin-bottom:20px;
}
img.right
{
float:right; margin: 0px 50px; margin-top:20px; margin-bottom:20px;
}
img.entete {
    max-width: 100%;
    height: auto;
}

/*
header {
    background-color:#2153A9 !important; 
    color:white;
    text-align:center;
    padding:5px; 
}

nav {
    line-height:30px;
    background-color:#eeeeee;
    height:300px;
    width:100px;
    float:left;
    padding:5px; 
}
section {
    width:350px;
    float:left;
    padding:10px; 
}
footer {
    background-color:black;
    color:white;
    clear:both;
    text-align:center;
    padding:5px; 
}
<!--- + <script>document.createElement("blocaaf1")</script> --->	
blocaaf2 { 
	text-align:center;
      display:block;
      padding: 5px;
	color:#0000FF !important;background-color:white !important;
  }  
 */
 /* couleurs */
.aafblue{color:white !important;background-color:#2153A9 !important;}
.aafbluer{color:red !important;background-color:#2153A9 !important}
.aafblue-text{color:#0000FF !important;background-color:white !important}
.aafblue-text-ib{color:#0000FF !important;background-color:white !important; font-weight:bold !important; font-style:italic}
.aafred{color:white !important;background-color:red !important;}
.aafred-text-ib{color:#FF0000 !important;background-color:white !important; font-weight:bold !important; font-style:italic}
.aafblack-text-ib{color:black !important; font-weight:bold !important; font-style:italic}
/*--------------------------------------------------------------*/