body{

  margin: 0;
  font-family: Helvetica, sans-serif;



background-image:url('images/nuit2.jpg');
background-repeat: repeat;
background-size:100%;




-webkit-box-shadow: inset 0px 0px 24px 8px rgba(250,247,250,1);
-moz-box-shadow: inset 0px 0px 24px 8px rgba(250,247,250,1);
box-shadow: inset 0px 0px 24px 8px rgba(250,247,250,1);
}* header */




#contener{

 
}

a {
  color: #000;
}

/* header */

/* header pic haut menu*/
#vert{

text-align:center;
 background: linear-gradient(white, #4b584c);
width: 100%;

margin-bottom:-2px;
}


#vert img{
width: 100%;
  
}

/*tour general menu hauteur ...*/
.header {
  
  box-shadow: 1px 1px 4px 0 rgba(0,0,0,.1);
  position: fixed;
  width: 100%;
  z-index: 3;
margin-top:-25px;

  
margin-bottom:20px;
  border-radius: 20px;
  background: linear-gradient(white,black,white);

}
/*tour petit menu*/
.header ul {
  margin: 0;
  padding: 0;
  list-style: none;
  overflow: hidden;
  background-image: url('images/cloud.gif');
  background-size: 100%;
   border-radius: 20px;
  
}

.header li a {
  display: block;
  padding: 20px 20px;
  border-right: 1px solid #f4f4f4;
  text-decoration: none;
  font-size: 165%;
  font-weight: bolder;
}

.header li a:hover,
.header .menu-btn:hover {
  background-color: #f4f4f4;
}

.header .logo {
  display: block;
  float: left;
  font-size: 0,3em;
  padding: 10px 20px;
  text-decoration: none;
}

/* menu */

.header .menu {
  clear: both;
  max-height: 0;
  transition: max-height .2s ease-out;

}

/* menu icon */

.header .menu-icon {
  cursor: pointer;
  display: inline-block;
  float: right;
  padding: 28px 20px;
  position: relative;
  user-select: none;
}

.header .menu-icon .navicon {
  background: #333;
  display: block;
  height: 2px;
  position: relative;
  transition: background .2s ease-out;
  width: 18px;
}

.header .menu-icon .navicon:before,
.header .menu-icon .navicon:after {
  background: #333;
  content: '';
  display: block;
  height: 100%;
  position: absolute;
  transition: all .2s ease-out;
  width: 100%;
}

.header .menu-icon .navicon:before {
  top: 5px;
}

.header .menu-icon .navicon:after {
  top: -5px;
}

/* menu btn */

.header .menu-btn {
  display: none;
}

.header .menu-btn:checked ~ .menu {
  max-height: 240px;
}

.header .menu-btn:checked ~ .menu-icon .navicon {
  background: transparent;
}

.header .menu-btn:checked ~ .menu-icon .navicon:before {
  transform: rotate(-45deg);
}

.header .menu-btn:checked ~ .menu-icon .navicon:after {
  transform: rotate(45deg);
}

.header .menu-btn:checked ~ .menu-icon:not(.steps) .navicon:before,
.header .menu-btn:checked ~ .menu-icon:not(.steps) .navicon:after {
  top: 0;
}

/* 48em = 768px */

@media (min-width: 48em) {
  .header li {
    float: left;
  }
  .header li a {
    padding: 20px 30px;
  }
  .header .menu {
    clear: none;
    float: right;
    max-height: none;
  }
  .header .menu-icon {
    display: none;
  }

 #marge{
  height: 300px;
}

#section1{

  margin-left: 3.2%;
margin-right:3%;
margin-top:1px;
  display: flex;
  flex-direction: row;
  flex-wrap: nowrap;
  justify-content: space-between;
  margin-bottom:3%;
  
}



#section1 img{
  -webkit-box-shadow: 0px 0px 24px 8px rgba(250,247,250,1);
-moz-box-shadow: 0px 0px 24px 8px rgba(250,247,250,1);
box-shadow: 0px 0px 24px 8px rgba(250,247,250,1);
 border-radius: 20px;
  display: flex;
  flex-direction: row;
  flex-wrap: nowrap;
  margin: auto;
  justify-content: space-between;
  width: 30%;
}

.sectionm {
  width: 90%;
 margin-left:5%;
margin-top:4%;
border-radius: 20px;-webkit-box-shadow: 0px 0px 24px 8px rgba(250,247,250,1);
-moz-box-shadow: 0px 0px 24px 8px rgba(250,247,250,1);
box-shadow: 0px 0px 24px 8px rgba(250,247,250,1);
-webkit-box-shadow: 0px 0px 24px 8px rgba(250,247,250,1);
-moz-box-shadow: 0px 0px 24px 8px rgba(250,247,250,1);
box-shadow: 0px 0px 24px 8px rgba(250,247,250,1);
}

#section2{
margin-top: 4%;
margin-left: 3.2%;
margin-right:3%;
  display: flex;
  flex-direction: row;
  flex-wrap: nowrap;
  justify-content: space-between;
}

#section2 img{
margin-top: 4%;
  display: flex;
  flex-direction: row;
  flex-wrap: nowrap;
  margin: auto;
  justify-content: space-between;
  width: 30%;
  border-radius: 20px;
  -webkit-box-shadow: 0px 0px 24px 8px rgba(250,247,250,1);
-moz-box-shadow: 0px 0px 24px 8px rgba(250,247,250,1);
box-shadow: 0px 0px 24px 8px rgba(250,247,250,1);
}

#section3{
margin-top: 4%;
margin-left: 3.2%;
margin-right:3%;
  display: flex;
  flex-direction: row;
  flex-wrap: nowrap;
  justify-content: space-between;
}

#section3 img{
margin-top: 4%;
  display: flex;
  flex-direction: row;
  flex-wrap: nowrap;
  margin: auto;
  justify-content: space-between;
  width: 30%;
  border-radius: 20px;
  -webkit-box-shadow: 0px 0px 24px 8px rgba(250,247,250,1);
-moz-box-shadow: 0px 0px 24px 8px rgba(250,247,250,1);
box-shadow: 0px 0px 24px 8px rgba(250,247,250,1);
}


#text p{

color:white;
margin-right: 15%;
margin-left:15%;
text-align: justify;
border-radius: 20px;
 -webkit-box-shadow: 0px 0px 24px 8px rgba(250,247,250,1);
-moz-box-shadow: 0px 0px 24px 8px rgba(250,247,250,1);
box-shadow: 0px 0px 24px 8px rgba(250,247,250,1);
font-size: 20px;
padding-left: 1.5%;
padding-right: 1.5%;
padding-top: 1.5%;
padding-bottom: 1.5%;

}

#footer{

  width: 100%;
  height: 200px;
  background-color: tomato;
  background-image: url('images/menu_g.jpg');
  text-align:center;
  background-position: center;

}