body
{
    text-align: center;
    width: 60%;
    margin: auto;
    background-color: #545455;
}

header
{
    border-radius: 10px;
    margin: 10px;
    padding: 8px;
    background-color: black;
    color: orange;
}

#banner
{
    display: inline-block;
    float: right;
}

#introduction
{
    text-align: justify;
    border-radius: 5px;
    margin-bottom: 10px;
}

#introduction article
{
    display: block;
    width: 42%;
    background-color: white;
    border: solid;
    border-radius: 3px;
    border-radius: 0px;
    padding: 10px;
}

article h2, form h2
{
    background-color: black;
    color: orange;
    margin-left: -10px;
    margin-right: -10px;
}

#bonjour
{
    float: left;
    margin-left: 2%;
    vertical-align: top;
}

#fonctionnement
{
    float: right;
    margin-right: 2%;
    margin-bottom: 10px;
}

form
{
    border: solid;
    border-radius: 5px;
    clear: both;
    margin-top: 10px;
    margin-bottom: 20px;
    text-align: left;
    padding: 10px;
    background-color: white;
}

#list
{
    padding-top: 100px;
    padding-bottom: 100px;
}

#q
{
    vertical-align: top;
}

aside
{
    float: right;
    width: 30%;
    box-shadow: 0px 5px 10px black;
    padding-left: 10px;
    padding-right: 10px;
    background-color: black;
    color: orange;
}

#arrow
{
    position: absolute;
    margin-left: -40px;
    margin-top: 80px;
}

footer
{
    border-top: solid;
    text-align: justify;
}