html {
    margin:0;
    padding:0;
}
header {
    background: url(../images/nouvel_avertisseur.jpg) no-repeat center fixed;
    background-size: cover;
    width: 100%;
    height: 50em;
    border-bottom: 1px solid black;
}

.zonelogo {
    font-size: 6vw;
    width: 4em;
    margin: 1em;
}

.zonelogo2 {
    font-size: 4vw;
    margin-top: 0.5em;
    margin-right: 3em;
}

.logo {
    background-color: rgba(150, 150, 150, .65);
}

.logo2 {
    background-color: rgba(150, 150, 150, 1);
    padding: 0 15px;
}

.grisBnf {
    background-color: rgba(150, 150, 150, 1);
    color: white;
    padding: 5px;
}
main {
    position: relative;
    background-color: #ffffff;
    font-size: 18px;
}

a, a:focus, a:active, a:visited {
    color:rgba(150, 150, 150, 1);
    text-decoration: underline;
}
a:hover {
    color:black;
    text-decoration: underline;
}

table {
    margin: 1em 0;
}

.alerte_num {
    background-color: black;
    color: white;
    font-size: 24px;
    font-weight: bold;
    letter-spacing: 5px;
    width:55px;
    text-align: center;
}

.alerte_txt {
    padding-left: 15px;
}

#url::placeholder {
    color: #ccc;
}