html, body {
    height: 100%;
    /*width: 100%;*/
    font-family: 'Open Sans','Helvetica Neue',Helvetica,Arial,sans-serif;
    margin: 0;
    padding: 0;
}



.vert {
    vertical-align: middle;
    width: 100%;
    padding-top: 4%;
    text-align: center;
}

.header h1 {
    font-size: 80px;
    -webkit-text-stroke: 1px rgba(f,f,f,0.1);
    color: #431a6d;
    color: #7550AD;
    margin-left: -5px;
    margin-bottom: 5px;
    text-transform: uppercase;
}

.header .lead {
    color: #ba544a;
    font-size: 25px;
    font-weight: 300
}

.header {
  
    height: 80%;
    background: #f68076 url('../images/pt_topo_l.png') repeat center center fixed;
}

.header .btn-lg {
    font-size: 28px;
    border-color: #7550AD;
    padding: 15px;
    background-color: transparent;
    color: #7550AD;
}

.header .btn-lg:hover {
    background-color: #eeeeee;
    color: #777777;
}


.background{
    overflow: auto;
}

/* Extra Small Devices, Phones */
@media only screen and (min-aspect-ratio: 1/16) {

    h1 {
        font-size: 25px;
    }

    h3 {
        font-size: 10px;
    }
 
    .background-guest {
        background: url('../images/blurred_iphone.jpg') no-repeat center center fixed;
        height: 100%;
        width: 100%;
        -webkit-background-size: cover;
        -moz-background-size: cover;
        -o-background-size: cover;
        background-size: 100%;
    }

    .background {
        background: url('../images/blurred_op_iphone.jpg') no-repeat center center fixed;
        height: 100%;
        width: 100%;
        -webkit-background-size: cover;
        -moz-background-size: cover;
        -o-background-size: cover;
        background-size: 100%;
    }
}

/* Small Devices, Tablets */
@media only screen and (min-aspect-ratio: 4/3) {

    h1 {
        font-size: 35px;
    }

    h3 {
        font-size: 12px;
    }

    .background-guest {
        background: url('../images/blurred_sml.jpg') no-repeat center center fixed;
        height: 100%;
        width: 100%;
        -webkit-background-size: cover;
        -moz-background-size: cover;
        -o-background-size: cover;
        background-size: 100%;
    }

    .background {
        background: url('../images/blurred_op_sml.jpg') no-repeat center center fixed;
        height: 100%;
        width: 100%;
        -webkit-background-size: cover;
        -moz-background-size: cover;
        -o-background-size: cover;
        background-size: 100%;
    }
}

/* Medium Devices, Desktops */
@media only screen and (min-aspect-ratio: 16/9) {

    h1 {
        font-size: 40px;
    }

    h3 {
        font-size: 15px;
    }

    .background-guest {
        background: url('../images/blurred_bg.jpg') no-repeat center center fixed;
        height: 100%;
        width: 100%;
        -webkit-background-size: cover;
        -moz-background-size: cover;
        -o-background-size: cover;
        background-size: 100%;
    }

    .background {
        background: url('../images/blurred_op.jpg') no-repeat center center fixed;
        height: 100%;
        width: 100%;
        -webkit-background-size: cover;
        -moz-background-size: cover;
        -o-background-size: cover;
        background-size: 100%;
    }
}


.alt {
    background-color: #2f2f46;
    background-repeat: no-repeat;
    background-position-x: center;
    background-image: url('../images/bg-light.png');
}



h1, h2, h3, h4, .lead, .navbar a {
    text-transform: uppercase;
    font-family: 'Open Sans','Helvetica Neue',Helvetica,Arial,sans-serif;
    letter-spacing: 2px;
}

.navbar a, .navbar h3 {
    color: white;
}

.background > h1 {
    top: 70%;
    left: 50%;
    margin: 0;
    color: #000;
    font-size: 4em;
    position: absolute;
    font-family: sans-serif;
    transform: translate(-50%, -50%);
}

.background > h4 {
    top: 75%;
    left: 50%;
    margin: 10px;
    color: #000;
    font-size: 2em;
    position: absolute;
    font-family: sans-serif;
    transform: translate(-50%, -50%);
}



.navbar-header {
    color: #fff;
}

.page-header {
    padding-top: 30px;
}


.lds-grid {
    display: inline-block;
    position: relative;
    width: 64px;
    height: 64px;
}

    .lds-grid div {
        position: absolute;
        width: 13px;
        height: 13px;
        /*border-radius: 50%;*/
        background: #808080;
        animation: lds-grid 1.2s linear infinite;
    }

        .lds-grid div:nth-child(1) {
            top: 6px;
            left: 6px;
            animation-delay: 0s;
        }

        .lds-grid div:nth-child(2) {
            top: 6px;
            left: 26px;
            animation-delay: -0.4s;
        }

        .lds-grid div:nth-child(3) {
            top: 6px;
            left: 45px;
            animation-delay: -0.8s;
        }

        .lds-grid div:nth-child(4) {
            top: 26px;
            left: 6px;
            animation-delay: -0.4s;
        }

        .lds-grid div:nth-child(5) {
            top: 26px;
            left: 26px;
            animation-delay: -0.8s;
        }

        .lds-grid div:nth-child(6) {
            top: 26px;
            left: 45px;
            animation-delay: -1.2s;
        }

        .lds-grid div:nth-child(7) {
            top: 45px;
            left: 6px;
            animation-delay: -0.8s;
        }

        .lds-grid div:nth-child(8) {
            top: 45px;
            left: 26px;
            animation-delay: -1.2s;
        }

        .lds-grid div:nth-child(9) {
            top: 45px;
            left: 45px;
            animation-delay: -1.6s;
        }

@keyframes lds-grid {
    0%, 100% {
        opacity: 1;
    }

    50% {
        opacity: 0.5;
    }
}

.outer {
    display: table;
    position: absolute;
    height: 100%;
    width: 100%;
}

.middle {
    display: table-cell;
    vertical-align: middle;
}

.inner {
    margin-left: auto;
    margin-right: auto;
    width: 400px;
    text-align: center;
    /*whatever width you want*/
}