body{
    background-color: #77d5da;
}
header{
    display: flex;
    flex-wrap: wrap;
    border: solid thin;
    border-radius: 1em;
    background-color: white;
}
header img{
    width: 13em;
    height: auto;
    margin-right: 2%;
}
header a{
    font-size: 110%;
}
h1{
    color: #8b107a;
    margin: 3%;
    margin-left: 3%;
    flex: 1 1 60%;
}
header nav{
    margin-left: -1%;
}
header ul{
    margin-bottom: 3%;
}
header ul li{
    display: inline;
    margin: 1em;
}
header a{
    text-decoration: none;
    color: blue;
}
.underline{
    text-decoration: underline;
}
article{
    border: solid thin;
    border-radius: 1em;
    margin-top: 2%;
    padding: 3%;
    padding-right: 10% ;
    background-color: white;
}
p{
    font-size: 125%;
}
.intro{
    width:20em;
    height: auto;
}
.surf{
    width: 20em;
    height: auto;
}
.toile{
    width: 20em;
    height: auto;
}
.origine{
    width: 25em;
    height: auto;
}
.internet{
    width: 20em;
    height: auto;
}
article p{
    margin-top: 2%;
}
article a{
    font-size: 125%;
    text-decoration: none;
    color: blue;
}
footer{
    font-size: 75%;
    border: solid thin;
    border-radius: 1em;
    margin-top: 2%;
    background-color: white;
    padding-left: 3%;
}
footer ul a{
    color: blue;
    text-decoration: underline;
}
.caché {
    color: white;
}
.secret {
    background-image: linear-gradient(to left, violet, indigo, blue, green, yellow, orange, red);   -webkit-background-clip: text;
    color: transparent;
}

footer img{
    width: 20em;
}