body  {
  font-family: Serif;
  background-color: whitesmoke;
}
h1 {
  color:whitesmoke;
  text-decoration: underline;
  text-align: center;
  font-size: 80px;
  margin-block-end: 20px;
  background-image:  url(python-1.jpg);
  padding-top: 105px;
  padding-bottom:100px;
}
h2 {
  text-align: center;
  text-decoration: underline;
  font-size: 60px;
  line-height:20pt;
}
h3 {
  margin-left: 120px;
  font-size: 50px;
  line-height:20pt;
}
h4 { 
  padding: 15px;
  background-attachment: fixed;
  background-position:  center;
  background-color: rgba(199, 0, 0, 0.774);
  margin-left:70px;
  font-size: 40px;
  color:rgba(255, 255, 255, 0.863);
  line-height:20pt;
}
h5 {
  margin-left: 30px;
  font-size: 35px;
  line-height:20pt;
}
h6 {
  margin-left: 30px;
  font-size:28px;
  line-height:20pt;
}

.script {
  margin-left: 60px;
  font-size: 30px;
  line-height:20pt;
  padding: 10px;
  background-color: rgba(199, 0, 0, 0.116);
}
.souligner {
  text-decoration:underline;
}
img {
  text-align: center;
  margin-left: 100px;
  border: 1px #23282d solid; 
}
figcaption {
  margin-left: 120px;
}
nav {
text-align:  center;
height: 60px;
background: #ca0000;
font-family:'Serif';
font-size:20px;
margin-bottom: 20px;
}
nav ul ul {
display: none;
text-align:  center;
}
nav ul li:hover > ul {
display: block;
text-align:  center;
}
nav ul {
list-style: none;
position: relative;
display: inline-table;
text-align:  center;
}
nav ul:after {
content: "";
clear: both;
display: block;
line-height: 40px;
text-align:  center;
}
nav ul li {
float: left;
height: 40px;
text-align:  center;
margin-top: 10;
}
nav ul li:hover {
background: #b90000;
margin:0;
text-align:  center;
}
nav ul li:hover a {
color: #fff;
text-align:  center;
}
nav ul li a {
display: block;
padding: 0px 10px;
color: #fff;
text-decoration: none;
font-size: 20px;
width: 300px;
text-align:  center;
}
nav ul ul {
background: #c90000;
padding: 0;
position: absolute;
z-index:999999999999999999999999999999999;
width: 320px;
margin-top:10px;
text-align:  center;
}
nav ul ul li {
float: none;
border-top: 2px solid #be0000;
text-align:  center;
position: relative;
margin-right: 50px;
}
nav ul ul li a {
padding: 5px 5px;
color: rgb(212, 212, 212);
margin-top: 5px;
text-align:  center;
}
nav ul ul li a:hover { 
text-align:  center;
}
nav ul ul ul {
position: absolute;
text-align:  center;
}
.paragraphe {  
  text-indent: 50px;
  text-align: justify;
  text-justify: inter-word;
  font-size: 25px;
  padding: 5px; 
  margin: 30px;

}
questionnaire {
  display: block;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  transition: all .5s ease;
  cursor: pointer;
  position: absolute;
  top: -2px;
  left: -3px;
  background: #ccc;
}

table
{
  border-collapse: collapse; 
  font-size: 15px;
}
td
{
  border: 1px solid black;
}
figcaption {
  font-size: 20px;
}