.le-contenu {
display: flex;
flex-wrap: wrap;
flex: 1;
}
section {
width: 100%;
margin: 5px;
}
section, article {
display: flex;
flex-wrap: wrap;
justify-content: center;
align-items: flex-start;
}
article {
width: 100%;
margin: 5px;
border: 1px solid #000;
border-radius: 10px;
box-shadow: inset 0px 0px 2px 2px rgba(0, 0, 0, .8);
}
h2 {
border-bottom: 2px solid #000;
margin: 0;
width: 100%;
padding: 2px 10px;
border-top-left-radius: 10px;
border-top-right-radius: 10px;
box-shadow: inset 0px 0px 2px 2px rgba(0, 0, 0, .8);
background: linear-gradient(30deg, #aed6f1,  #2980b9,  #d4e6f1,  #d4e6f1);
}
p.vigueur {
margin: 0;
padding: 10px;
color: #F00;
margin-left: auto;
text-decoration: underline;
}
p.mentions {
margin: 0;
padding: 10px;
text-align: center;
}