@media screen {

    html, body {
        min-height: 100%;
    }

    body {
        margin: 0;
        font-size: 18px;
        font-family: Verdana, sans-serif;
        background: #fff;
        line-height: 1.4;

        overflow: hidden;
    }

    #page-wrap {
        width: 100%;
        height: 100vh;
        overflow: hidden;
    }

    /*** canvas ***/

    #canvas {
        height: 100vh;
        width: 100vw;
        position: fixed;
    }


    .curtain {
        position: absolute;
        top: 0;
        right: 0;
        bottom: 0;
        left: 0;
    }

    .curtain img, .curtain canvas {
        display: none;
    }


}