html, body{height: 100%;}


.red{
    height: 600px;
    background-color: red;
}
.main-page
{
    overflow: hidden;
    min-height: 100%;

    /*background: url("../img/background.jpg") no-repeat center fixed;
    background-size: cover;
    -webkit-background-size: cover;
    margin:0;
    padding: 0;*/

}
.titre
{

    background-color: black;
    color: white;
    margin-bottom: -9999px;
    padding-bottom: 9999px;
    
}
.titre h1,h3{
    margin-left: 5%;
    margin-top: 30%;
}

.formulaire-inscription
{
    margin-top: 30%;

    margin-left: 5%;
    margin-right: 10%;
    margin-bottom: -9999px;
    padding-bottom: 9999px;


}