@media only screen and (max-width: 992px) {
    .headline {
        font-size: 80px;
        letter-spacing: 10px;
    }
}
@media only screen and (max-width-device: 768px) and (max-height-device: 460px)
{
    .headline {
    margin-bottom: 60px;
    text-align: center;
    margin-top: -41%;
    font-size: 62px;}
}
@media only screen and (max-width: 768px) {
    .vcenter,
    .footer-area {
        position: absolute;
        -webkit-transform: translateY(0);
        transform: translateY(0)
    }
    .headline {
        margin-bottom: 60px;
        text-align: center;
        margin-top: -73%;
        font-size: 90px;
    }
    .headline span {
        display: inline-block;
    }
    header {
        padding: 50px 0;
    }
    .xs-center {
        text-align: center;
    }
    .navbar-header {
        display: block;
        margin-bottom: 20px;
        text-align: center;
    }
    .mainmenu-area ul {
        text-align: center;
    }
    .navbar-brand {
        display: inline-block;
        float: none;
        padding: 5px 15px;
        text-align: center;
    }
    .subscribe-form {
        margin-bottom: 20px;
    }
    .subscribe-form .form-box {
        max-width: 100%;
        width: 100%;
        margin-right: 0;
    }
    .signin-btn{text-align:center;}
}

@media only screen and (max-width: 640px) 
{
        .headline{font-size: 48px;margin-top: -19%;}
}
@media only screen and (max-width: 603px) 
{
    .footer-area{position: absolute;}
    .section-bg{background-repeat: no-repeat;
    background-position: center right;
    background-size: cover;}
    .headline{font-size: 100px;}
    .signin-btn{text-align:center;}
}
@media only screen and (max-width: 568px) 
{
    .headline {
    font-size: 47px;
    letter-spacing: 10px;margin-bottom: 18px;margin-top: -14%;}    
}
@media only screen and (max-width: 320px) 
{
    .section-bg{background-repeat: no-repeat;
    background-position: center right;
    background-size: cover;}
    
    .signin-btn{text-align:center;}
    .headline {
    font-size: 80px;
    letter-spacing: 10px;
}
}