body,div,dl,dt,dd,ul,ol,li,h1,h2,h3,h4,h5,h6,pre,form,fieldset,input,p,blockquote,th,td, nav{
  margin:0;
  padding:0;
}


nav{
  position: fixed;
  width: 100%;
  height: 50px;
  background-color: white;
  z-index: 02;
}

.navigo{
  font-family: 'Open Sans', sans-serif;
  color:#252525;
  text-decoration: none;
  font-weight: bold;
  text-transform: uppercase;
}
.navigo:hover{
border-bottom: 1px solid #252525;
}
nav li{
  display: inline-block;
  vertical-align: top;
  padding:20px 40px 20px 40px;
}



mark{
	border-bottom: 1px solid black;
	background-color: white;
}


img {

margin-bottom: 10px;
margin-top: 5px;
}




article {
  position: absolute;
  margin-top: 100px;
  margin-left: 30px;
  z-index: 01;
  font-family: 'Open Sans', sans-serif;
}

#portfolio-1 {
  margin: 25px 25px 25px 25px;
  height: 250px;
  width: 200px;
  display: inline-block;
  vertical-align: top;
  text-decoration: none;
  color: black;
  font-size: 12px;
  font-weight: normal;
  font-family: 'Open Sans', sans-serif;
  text-align: left;
  }
#portfolio-1:hover {
  opacity: 0.7;
  }

  #portfolio-3 {
    margin-right: 15px;
    margin-left: 15px;
    margin-bottom: 30px;
    display: inline-block;
    vertical-align: top;
    color: black;
    font-size: 10px;
    font-weight: light;
    font-family: 'Open Sans', sans-serif;
    text-align: left;
    }

.premiermenu {
    max-width: 190px;
    max-height: 190px;
    }
.deuxiememenu {
  max-width: 500px;
  max-height: 500px;
  }





h1 {
  font-size: 20px;
  font-weight: Bold;
  font-family: 'Open Sans', sans-serif;
padding-bottom: 13px;
margin-bottom: 10px;
}

h2 {
  font-size: 18px;
  font-weight: lighter;
  font-family: 'Open Sans', sans-serif;
  border-top: 1px solid black;
}
h3 {
  font-size: 18px;
  font-weight: normal;
  font-family: 'Open Sans', sans-serif;
}

aside {
  position: absolute;
  margin-top: 130px;
  margin-left: 70px;
  width: 700px;
  z-index: 01;
  font-family: 'Open Sans', sans-serif;
}

.apropos {
  margin-top: 130px;
  margin-left: 70px;
  margin-right: 50px;
  width: 300px;
  z-index: 01;
  font-family: 'Open Sans', sans-serif;
  display: inline-block;
  vertical-align: top;
  line-height: 20px;
  font-size: 14px;
}

.expos {
  margin-top: 130px;
  margin-right: 50px;
  width: 250px;
  z-index: 01;
  font-family: 'Open Sans', sans-serif;
  display: inline-block;
  vertical-align: top;
  padding-left: 50px;
  font-size: 12px;
}
.expos2 {
  margin-top: 130px;
  width: 250px;
  z-index: 01;
  font-family: 'Open Sans', sans-serif;
  display: inline-block;
  vertical-align: top;
  padding-left: 50px;
  font-size: 12px;
}
.actualite {
  margin-top: 130px;
  margin-left: 70px;
  margin-right: 70px;
  width: 450px;
  z-index: 01;
  font-family: 'Open Sans', sans-serif;
  display: inline-block;
  vertical-align: top;
  line-height: 20px;
  font-size: 14px;
}
.passe {
  margin-top: 130px;
  padding-left: 70px;
  margin-right: 50px;
  border-left: 1px solid black;
  width: 450px;
  z-index: 01;
  font-family: 'Open Sans', sans-serif;
  display: inline-block;
  vertical-align: top;
  line-height: 20px;
  font-size: 14px;
}

a {
  text-decoration: none;
  color: black;
  font-family: 'Open Sans', sans-serif;
  weight: bold;
}