#sujet {
text-align: center;
margin-left:2%;
width: 95%;
}

#description{
margin-left: 3%;
width: 90%;
}
#travail{
margin-left: 3%;
width: 90%;
} 

#remarques{
margin-left: 3%;
width: 90%;
}

#screenshot{
text-align : center;
}

#references{
margin-left: 3%;
width: 90%;
font-style: italic;
}

#encadrants{
margin-left: 3%;
width: 90%;
}