#bloc_page
{
display: flex;
justify-content: space-around;
height: 1500px;
width: 1450px;
flex-wrap: wrap;
}

section
{
display: flex;
flex-direction: row;
justify-content: space-around;
color: white;
width: 100%;
margin: 2px;
background-color: grey;
background-attachment: scroll;
font-size: 20px;
height: 6000px;
padding: 55px;
}

header
{
background-color: white;
width: 1450px;
height: 150px;
{

logo
{
display: flex;
text-transform: uppercase;
margin: auto;
padding-top: 0px;
}