.bg{
    background-attachment: fixed;
    height: 100%; 
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover
}
.form_col {
    display: inline-block;
    margin-right: 15px;
    padding: 3px 0px;
    width: 200px;
    min-height: 1px;
    text-align: right;
}
.form_col_champ {
    display: inline-block;
    margin-right: 15px;
    padding: 3px 0px;
    width: 200px;
    min-height: 1px;
    text-align: left;
}
textarea{
    vertical-align: top;
}