#div_titre
{
	margin-right:50%;
	width:50%;
}

#div_img
{
	float:right;
	width:50%;
	text-align:center;
}

.img_ecran
{
	float:right;
	width:50%;
	margin-top:20px;
}
.div_textePart1
{
	width:100%;

}
.div_textePart2
{
	overflow:auto;
}
.div_textePart3
{
	width:50%;
	margin-left:25%;
	margin-right:25%;
	color:rgb(30,150,245);
	font-weight:bold;
	border-style:solid;
	border-color:Black;
	text-align:center;
}