body {
    /* background-image: url("./images/index_background_winter.jpg");
    background-repeat: no-repeat;*/
    background-size: cover;
    background-position-y: -100px;
    background-attachment: fixed;
    margin: 0;
    max-width: 1920px;
}

body #body-background {
    position: fixed;
    background-image: url("./images/background-electronic.jpg");
    background-position: left;
    background-repeat: no-repeat;
    background-size: 1400px;
    background-attachment: fixed;
    border-radius: 0 100% 100% 0;
    background-position-x: 0px;
    background-position-y: -180px;
    top: -300px;
    width: 1400px;
    height: 1720px;
    z-index: 1;
    opacity: 0.25;
}

/*********************************************/
/*                 Header                    */
/*********************************************/
header {
    position: fixed;
    top: 0px;
    background: rgba(255,255,255,0.25);
    background: linear-gradient(180deg, rgba(255,255,255,0.25) 0px, rgba(255,255,255,0.25) 60px, rgba(0,0,0,0.15) 60px, rgba(0,212,255,0) 70px);
    width: 100%;
    height: 70px;
    z-index: 3;
    font-family: Verdana, Geneva, Tahoma, sans-serif;
    color: black;
}

header .topnav {
    /*background-color: aqua;*/ /* Control background */
    width: 1400px;
    height: 60px;
    line-height: 60px;
    margin: auto; /* Centering header */
}

header .topnav .profil-picture {
    position: fixed;
    float: left;
    background-image: url("./images/photo3.jpg");
    background-size: contain;
    height: 100px;
    width: 100px;
    border-radius: 100%;
    outline: 6px solid rgba(255, 255, 255, 0.3);
    margin: 15px 0px 0px 6px;
    z-index: 3;
    opacity: 1;
}

header .topnav .profil-name {
    float: left;
    padding-left: 120px;
    font-size: 15pt;
}

header .topnav .topnav-right {
    float: right;
    font-size: 15pt;
}

header .topnav a {
    display: inline-block;
    padding: 0px 14px;
    margin: -3px;
    /*background-color: green;*/ /* Control background */
    color: black;
    text-decoration: none;
}

header .topnav a:hover {
    background-color: rgb(0, 174, 255);
}

/*********************************************/
/*                 Container                 */
/*********************************************/
#body-container {
    position:relative;
    float: none;
    margin: auto;
    margin-top: 60px;
    width: 1400px;
    height: 100%;
    z-index: 2;
}

#body-container .title-bloc {
    min-height: 100px;
    width: 100%;
    padding: 50px 0px 0px 0px;
    /*border: 1px solid black;*/
    font-family: Verdana, Geneva, Tahoma, sans-serif;
    color: black;
}

#body-container .title-bloc h1 {
    font-size: 20pt;
    text-align: center;
}

#body-container .title-bloc p {
    font-size: 15pt;
    text-align: left;
    margin: 0 50px;
}

#body-container .option-bloc {
    /*background-color: blue;*/ /* Control background */
    display: inline-block;
    min-height: 300px;
    height: 100%;
    margin: 50px 0px 20px 80px;
    width: 360px;
    font-family: Verdana, Geneva, Tahoma, sans-serif;
    color: black;
    text-align: center;
    vertical-align: top;
}

#body-container .option-bloc .topimg {
    width: 250px;
    height: 250px;
    padding-bottom: 10px;
    border-radius: 100%;
    text-align: center;
}

#body-container .option-bloc h1 {
    font-size: 20pt;
    text-align: center;
}

#body-container .option-bloc p {
    font-size: 16pt;
    text-align: left;
}

#body-container .option-bloc a {
    color: black;
    display: block;
    min-width: 100px;
    padding: 5px;
    margin: auto;
    border-radius: 20px;
    border: 1px solid rgba(0, 0, 0, 0.25);
    text-align: center;
    text-decoration: none;
    font-size: 16pt;
}

#body-container .option-bloc a:hover{
    background-color: rgba(0, 140, 255, 0.25);
}