html {
    width: 100%;
    height: 100%;

    -webkit-text-size-adjust: none;
    -webkit-user-select: none;
    -webkit-user-drag: none;
    -webkit-touch-callout: none;
    -webkit-tap-highlight-color: rgba(0,0,0,0);
}

body {
    position: relative;
    width: 100%;
    min-width: 320px; /* iphone */
    height: 100%;
    background:#eee;

    font-family: "HelveticaNeue", "Helvetica Neue", "HelveticaNeueRoman", "HelveticaNeue-Roman", "Helvetica Neue Roman", 'TeXGyreHerosRegular', "Helvetica", "Tahoma", "Geneva", "Arial", sans-serif;
    font-weight:400;
    font-size: 16px;
    line-height: 21px;
    color:#000;

    -webkit-text-size-adjust: none;
    -webkit-user-select: none;
    -webkit-user-drag: none;
    -webkit-touch-callout: none;
    -webkit-tap-highlight-color: rgba(0,0,0,0);
}

h1,h2,h3,h4,h5 {
    font-family: "HelveticaNeueMedium", "HelveticaNeue-Medium", "Helvetica Neue Medium", "HelveticaNeue", "Helvetica Neue", 'TeXGyreHerosRegular', "Helvetica", "Tahoma", "Geneva", "Arial", sans-serif;
    font-weight:500;
    font-size: 17px;
    line-height: 21px;
    color: #000;
}