#sirene {
    display: inline-block;
    /* background-color: #FF9800; */
    text-align: center;
    position: fixed;
    right: 16px;
    transition: background-color .5s, opacity .8s, visibility .8s;
    opacity: 0;
    visibility: hidden;
    z-index: 1000;
    width: 34px;
    height: 61px;
    background: url("../img/sirenepetite.jpg")no-repeat;
    bottom: 20px;
    border-radius: 15px;
}

#sirene::after {
    /* content: "\f077"; */
    font-family: FontAwesome;
    font-weight: normal;
    font-style: normal;
    font-size: 2em;
    line-height: 50px;
    color: #fff;
}

#sirene:hover {
    cursor: pointer;
    background-color: #333;
}

#sirene:active {
    background-color: #555;
}

#sirene.show {
    opacity: 0.5;
    visibility: visible;
}


/* Styles for the content section */

.content {
    width: 77%;
    margin: 50px auto;
    font-family: 'Merriweather', serif;
    font-size: 17px;
    color: #6c767a;
    line-height: 1.9;
}

@media (min-width: 500px) {
    .content {
        width: 43%;
    }
    /*#button {
    /* margin: 30px; 
    }*/
}

.content h1 {
    margin-bottom: -10px;
    color: #03a9f4;
    line-height: 1.5;
}

.content h3 {
    font-style: italic;
    color: #96a2a7;
}