body{
    margin-top: 20px;
    font-family: Calibri, Tahoma, Arial, Helvetica, "Bitstream Vera Sans", sans-serif;
    font-size:11px;
    background-image:url(../img/microsoft.jpg);
    background-size: cover;
}

#header, #footer{
    padding-right:10px;
    width:100%;
    background-color:#CCC;

}

#header {
    height:20px;
    padding-left:30px;
    text-align:left;
    position:fixed; top:0; left:0;
}

#footer{
    padding-right:10px;
    text-align:right;
    position:fixed; bottom:0; right:0;
}
.categorie{
    font-size:14px;
    font-weight: bold;
    color: #F3F5F4;
    float: left;
    width: 250px;
    min-height:220px;
    margin-left:0px;
        -moz-border-radius: 5px;
    border-radius: 5px;
        border-image: linear-gradient(#5D6D7E, #5696D6) 30;
        background-color: rgba(140, 114, 114, 0.5);
}

.categorie:hover{
}

ul {
    list-style-type: none;
    margin-left:0px;
    padding-left:0px;
    font-size:15px;
}

li{
    height:32px;
}

li:hover {
    -moz-border-radius : 5px;
    border-radius : 5px;
    background-color : #5699DB;
    -moz-opacity:0.70; /* propriétaire Firefox */
    opacity:0.70; /* CSS3 */
}

li img{
    width : 32px;
    height : 32px;
    border: 0;
    vertical-align:middle;
    margin-right:8px;
}

li:hover img{
    -moz-border-radius : 5px;
    border-radius : 5px;
    background-color : #fffea6;

}

a{
    text-decoration:none;
    color:#888;
    font-weight:bold;
    -moz-transition-property: color;
        -moz-transition-duration: 2s;
        transition-property: color;
        transition-duration: 1s;
}

li:hover a{
    color: #444;

}