body
{
background: url("fond.jpg") no-repeat center center fixed;
background-size: 100% 100%;
}

#sommaire
{
width: 390px;
height: 290px;
position: fixed;
top: 35%;
left: 1%;
}

.sommaireimg
{
position: relative;
width: 120%;
left: 7%;
top: 5%;
}

.boutonaccueil
{
width: 4%;
position: fixed;
top: 48%;
left: 5%;
}

.boutonlire
{
width: 4%;
position: fixed;
top: 48%;
left: 9.5%;
}

.boutonorigines
{
width: 4%;
position: fixed;
top: 48%;
left: 14%;
}

.boutonliens
{
width: 4%;
position: fixed;
top: 58%;
left: 5%;
}

.boutonmerci
{
width: 4%;
position: fixed;
top: 58%;
left: 9.5%;
}

#livre
{
position: fixed;
left: 35%;
top: 39%;
width: 30%;
height: 35%;
overflow: auto;
padding-left: 2px;
border: 1px #310F0B solid;
border-radius: 10px;
background-color: rgba(49,15,11,0.9);
}

#banniere
{
position: absolute;
left: 39.5%;
bottom: 6%;
color: #F2D5C1;
text-align: center;
font-size: 0.9em;
}