body
{
    margin: 0;
    font-family: -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif,"Apple Color Emoji","Segoe UI Emoji","Segoe UI Symbol";
    font-size: 1rem;
    font-weight: 400;
    line-height: 1.5;
    color: #212529;
    text-align: justify;
    background-color: #ffffff;
}

.main_wrapper
{
    min-width: 600px;
    width: 80%;
    margin: auto;
}
a {
    color: #1f8fff;
    text-decoration: none;
    background-color: transparent;
    -webkit-text-decoration-skip: objects;
}
a:hover {
    color: #70a1ff;
    text-decoration: underline;
    background-color: transparent;
    -webkit-text-decoration-skip: objects;
}

header
{
    display: flex;
    height: 4em;
    margin: 0.2em;
    border-radius: 0.6em;
    text-decoration: none;
    justify-content: center;
    align-items: center;
    /* background-color: #ffffff34;   */
}

/* Navigation */
nav
{
    display: flex;
    flex-direction: row;
    justify-content: center;
    align-items: center;
}
nav a
{
    display: flex;
    width : 15em;
    height: 2em;
    margin: 0.2em;
    border-radius: 0.6em;
    font-size: 1.5rem;
    color: #1e90ff;
    text-decoration: none;
    justify-content: center;
    align-items: center;
}
nav [selected]
{
    text-decoration: underline;
}

nav a:hover
{
    color: #70a1ff;
}

/* Organisation de la page */

.section_separator
{
    color: #11aa89d3;
    margin: 10px 0px 10px 0px;
    /* width: 50%; */
    align-content: center;
    
}
li
{
    margin-bottom: 0.8em;
}