/* Box-sizing -*/
* {
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
    *behavior: url('/test/grid/script/boxsizing.htc');
}

/* Display block per gli elementi HTML5 su IE */
article,
aside,
details,
figcaption,
figure,
footer,
header,
hgroup,
nav,
section {
    display: block;
}

/* Immagini responsive */
img {
    border: 0;
    vertical-align: middle;
    -ms-interpolation-mode: bicubic;
}

    img.scala {
        max-width: 100%;
        height: auto;
    }

/* Stili di base e tipografia */
html {
    font-size: 100%;
}

body {
    -webkit-text-size-adjust: 100%;
}

/* Griglia */

.riga {
    width: 100%;
    max-width: 1140px;
    min-width: 720px;
    margin: 0 auto;
    background: #fff;

}

[class*='colonna-'] {
    float: left;
    min-height: 1px;
    padding: 0 15px;
    position: relative;
    background: #fff;
}

.colonna-1-3 {
    text-align: center;
    width: 20%;
    min-height:500px;

}

.colonna-1-2 {
    width: 50%;
}

.colonna-1 {
    width: 100%;
}

[class*="colonna-"] + [class*="colonna-"]:last-child {
    float: right;
}

/* Micro-clearfix */
.contenitore:before,
.contenitore:after,
.riga:before,
.riga:after {
    content: " ";
    display: table;
}

.contenitore:after,
.riga:after {
    clear: both;
}

.contenitore,
.riga {
    *zoom: 1;
}


@media only screen and (max-width:600px) {
    .riga {
        width: auto;
        min-width: 0;
        margin-left: 0;
        margin-right: 0;
    }

    [class*="colonna-"] {
        width: auto !important;
        float: none;
    }

    [class*="colonna"] + [class*="colonna"]:last-child {
        float: none;
    }

    [class*="colonna-"]:before, [class*="colonna-"]:after {
        content: "";
        display: table;
    }

    [class*="colonna-"]:after {
        clear: both;
    }
}