header

{text-4lign:center;background-color:grey;font-size:20px;text-align: center;
width:50%;margin-left:400px;border:solid;2px black;box-shadow: black 10px 10px;border-radius: 20px;}

body

section
 {width:100%; background-color: #CDCDB4;margin-top:1%; }



.menu
{display:inline-block; margin-left:30%;margin-top:10px;padding-top: 15px;}

#menu-demo2, #menu-demo2 ul{
padding:0;
margin-left:0px;margin-top:0px;
list-style:none;
text-align:center;
}
#menu-demo2 li{
display:inline-block;
position:relative;
border-radius:8px 8px 0 0;
}
#menu-demo2 ul li{
display:inherit;
border-radius:0;
}
#menu-demo2 ul li:hover{
border-radius:0;
}
#menu-demo2 ul li:last-child{
border-radius:0 0 8px 8px;
}
#menu-demo2 ul{
position:absolute;
z-index: 1000;
max-height:0;
left: 0;
right: 0;
overflow:hidden;
-moz-transition: .8s all .3s;
-webkit-transition: .8s all .3s;
transition: .8s all .3s;
}
#menu-demo2 li:hover ul{
max-height:15em;
}
/* background des liens menus */
#menu-demo2 li:first-child{
background-color: #65537A; border-style: 
background-image:-webkit-linear-gradient(top, #65537A 0%, #2A2333 100%);
background-image:linear-gradient(to bottom, #65537A 0%, #2A2333 60%);
}
#menu-demo2 li:nth-child(2){
background-color: #729EBF;
background-image: -webkit-linear-gradient(top, #729EBF 0%, #333A40 100%);
background-image:linear-gradient(to bottom, #729EBF 0%, #333A40 100%);
}
/* couleur vaisseaux*/
#menu-demo2 li:nth-child(3){
background-color: #F6AD1A;
background-image:-webkit-linear-gradient(top, #F6AD1A 0%, #9F391A 100%);
background-image:linear-gradient(to bottom, #F6AD1A 0%, #9F391A 100%);
}
/*couleur myo*/
#menu-demo2 li:nth-child(4){
background-color: #F6AD1A;
background-image:-webkit-linear-gradient(top, #F6AD1A 0%, #9F391A 100%);
background-image:linear-gradient(to bottom, #F6AD1A 0%, #9F391A 100%);
}
/*couleur nerfs*/
#menu-demo2 li:last-child{
background-color: #CFFF6A;
background-image:-webkit-linear-gradient(top, #CFFF6A 0%, #677F35 100%);
background-image:linear-gradient(to bottom, #CFFF6A 0%, #677F35 100%);
}
/* background des liens sous menus */
#menu-demo2 li:first-child li{
background:#8B814C;
}
/*sous menu arthrologie*/

#menu-demo2 li:nth-child(2) li{
background:#159911;
}
/*couleur sous menu muscles*/
#menu-demo2 li:nth-child(3) li{
background:#9F391A;
}
/* couleur sous menu vaisseaux*/
#menu-demo2 li:nth-child(4) li{
background:#FF0000;
}
/*couleur sous menu nerfs*/

#menu-demo2 li:last-child li{
background:#159911;
}

/* background des liens menus et sous menus au survol */
#menu-demo2 li:first-child:hover, #menu-demo2 li:first-child li:hover{
background:#65537A;
}
#menu-demo2 li:nth-child(2):hover, #menu-demo2 li:nth-child(2) li:hover{
background:#729EBF;
}
#menu-demo2 li:nth-child(3):hover, #menu-demo2 li:nth-child(3) li:hover{
background:#F6AD1A;
}
#menu-demo2 li:last-child:hover, #menu-demo2 li:last-child li:hover{
background:#CFFF6A;
}
/* les a href */
#menu-demo2 a{
text-decoration:none;
display:block;
padding:8px 32px;
color:#fff;
font-family:arial;
}
#menu-demo2 ul a{
padding:8px 0;
}
#menu-demo2 li:hover li a{
color:#fff;
text-transform:inherit;
}
#menu-demo2 li:hover a, #menu-demo2 li li:hover a{
color:#000;
}
.image
{ width: 500px;margin-left:500px;border:groove 3px red;box-shadow: black 5px 10px}
/* bas de page */
.bas{position:fixed; width:3%;height:8%;margin-left:25%;bottom:1%;padding:20px; border:outset 2px red;border-radius :20px; font-size:1em;font-family: cursive;font-weight:bold;background-color:#F5F5DC}