body {
  font-family: Arial, sans-cerif;
  background-color: #C7C7C7;
  margin: 0px;
}
 

h1 {
  color: #333;
  font-size: 40px;
  margin: 24px;
  text-align: center;
}

h2 {
  color: #333;
  font-size: 29px;
  margin: 24px;
}

p {
  color: #333;
  font-size: 17px;
  margin-left: 24px;
}

a {
  color: #0077c2;
  text-decoration: none;
}

a:hover {
  color: #004466;
  border-bottom-color: #004466;  
}
#lien{ 
	border-bottom: 5px solid #0077c2;
}

nav {
  background-color: #333;
}

nav ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  justify-content: space-around;
  align-items: center;
}

nav li {
  margin: 0;
}

nav a {
  display: block;
  padding: 16px;
  color: white;
}

nav a:hover {
  background-color: #555;
}


img {
  max-width: 100%;
  height: auto;
  margin-bottom: 10px;
  display: block;
  margin-left: auto;
  margin-right: auto;
}


ul {
  list-style: disc;
  margin-left: 40px;
}

ol {
  list-style: decimal;
  margin-left: 40px;
}


table {
  border-collapse: collapse;
  width: 100%;
  margin-bottom: 16px;
}

th, td {
  padding: 8px;
  text-align: left;
  border: 1px solid #ddd;
}

th {
  background-color: #f2f2f2;
}


blockquote {
  font-style: italic;
  color: #666;
  border-left: 5px solid #ddd;
  padding: 8px 0 8px 16px;
  margin-left: 0;
}


cite {
  font-style: normal;
  font-size: 14.5px;
  color: #999;
}

iframe {
  display: block;
  margin-left: auto;
  margin-right: auto;
}

table {
  width: 75%;
  margin-left: auto;
  margin-right: auto;
}
section{
	display:flex;
}