body{
    font-size:100%;
    font-family: 'Source code pro', serif;
    margin: 0px;
    padding: 0px;
    background-color: rgb(243, 243, 243);
}
.en-haut{
    background-color: white;
}
header{
    width:100%;
}
a:hover{
    cursor:pointer;
}
p {
    text-align: justify;
}
nav{
    display:flex;
    align-items: center;
    padding: 0px;
    margin: 0px;
    margin-bottom:2px;
    box-shadow: grey 0px 2px 2px;
}
nav a {
    width: 25%;
    text-align:center;
    text-decoration: none;
    color:black;
    width: 100%;
    padding-top: 1.5rem;
    padding-bottom: 1.5rem;
    font-weight: bold;
    font-size: 200%;
    font-family: Verdana, Geneva, Tahoma, sans-serif;
}
.accueil:hover{
    background-color: rgb(176, 242, 182);
}
.inscription:hover{
    background-color: rgb(169, 234, 254);
}
.cours-et-docs:hover{
    background-color: rgb(254, 163, 71);
}
.contact:hover{
    background-color: rgb(255, 86, 86);
}
nav a {
    display:inline-block;
    text-decoration: none;
}
main{
    padding-top:3%;
    padding-bottom:3%;
}
section{
    width:44%;
    margin: auto;
    margin-top:1%;
    font-size: 180%;
    box-shadow:1px 1px 4px grey;
    text-align:center;
    margin-bottom:3%;
}
h2{
    text-align: center;
    margin:1%;
}
h1{
    text-align: center;
    font-size: 240%;
    font-family: monospace;
    margin:1%;
}
p{
    text-align: center;
    margin: 0;
}
.a-aligner{
    display:flex;
    align-items: top;
    justify-content: center;
    margin: 0 6%;
    padding: 3% 0;
    border-top: 2px solid grey;
}
.image{
    padding-top:4%;
}
.logo{
    display: inline-block;
    width:1.6rem;
    height:auto;
    margin: 0 1rem;
    margin-left:0;
}
.logo-mail{
    display: inline-block;
    width:2.2rem;
    height:auto;
    margin: 0 1rem;
    margin-left:0;
}
.logo-loc{
    display: inline-block;
    width:1.4rem;
    height:1.6rem;
    margin: 0 1rem;
    margin-left:0;
}
a{
    text-decoration: none;
}
.info{
    margin: 3% 0;
}
section{
    font-family: monospace;
    background-color: white;
    border-radius: 0.5rem;
}
.hidden {
    display:none;
}
.baniere-mobile{
    display:none;
}
h3{
    margin:2% 0;
}
.logo-bas{
    width:2.2rem;
}
@media only screen and (max-width: 1280px){
    h1{
        font-size:200%;
    }
    h2{
        font-size:170%;
    }
    nav a {
        font-size: 170%;
    }
    a{
        font-size: 170%;
    }
    .logo-loc{
        display: inline-block;
        width:1.1rem;
        margin: 0 1rem;
    }
    .info a{
        font-size: 140%;
    }
    section{
        width:80%;
        margin: auto;
        font-size:140%;
    }
    .a-aligner{
        font-size:140%;
    }
    .to-hide{
        display: none;
    }
    .hidden{
        display:block;
    }
}
@media only screen and (max-width: 960px){
    nav a {
        font-size: 140%;
    }
    a{
        font-size: 140%;
    }
    .info a{
        font-size: 120%;
    }
    section{
        width:70%;
        margin-left: 15%;
        margin-right: 15%;
        font-size:120%;
    }
    .a-aligner{
        font-size:120%;
    }
    .to-hide{
        display: none;
    }
    .hidden{
        display:block;
    }
}
@media only screen and (max-width:550px){
    body{
        background-color:white;
    }
    h1{
        font-size:170%;
    }
    h2{
        font-size:150%;
    }
    h3{
        font-size:100%;
    }
    .logo, .logo-loc{
        width:1rem;
    }
    .logo-bas{
        width:1.5rem;
    }
    section{
        margin:0;
        font-size:100%;
        width: 100%;
        box-shadow:none;
        padding:0;
    }
    nav a {
        font-size: 100%;
        padding: 1rem 0;
    }
    a{
        font-size: 100%;
    }
    .boutton{
        font-size: 150%;
        padding-top: 0.4rem;
        padding-bottom: 0.4rem;
        padding-left: 0.2rem;
        padding-right: 0.2rem;
    }
}
@media only screen and (max-width:350px){
    h1{
        font-size:150%;
    }
    h2{
        font-size:130%;
    }
    h3{
        font-size:80%;
    }
    .icon{
        width:2rem;
    }
    section{
        font-size:90%;
    }
    nav a {
        font-size: 90%;
        padding: 1rem 0;
    }
    a{
        font-size: 90%;
    }
    .boutton{
        font-size: 100%;
        padding-top: 0.4rem;
        padding-bottom: 0.4rem;
        padding-left: 0.2rem;
        padding-right: 0.2rem;
    }
    .icon{
        width:1.7rem;
    }
}
@media only screen and (orientation:portrait){
    .baniere-pc{
        display:none;
    }
    .baniere-mobile{
        display:block
    }
}