html {
    height: 100%;
}

body {
    margin: 0;
    padding: 0;
    height: 100%;
    overflow: auto;
    font-family: Arial, Helvetica, sans-serif;
}

.contener {
    width: 920px;
    margin: 20px auto;
    list-style: none;
    padding: 0;
    overflow: hidden;
}

.contener li {
    margin: 30px 20px;
    padding: 0;
    color: #000;
    font-size: 14px;
    float: left;
}

.contener img {
    border: 0;
    display: block;
    margin-bottom: 6px;
}

h1 {
    color: #fff;
    font-size: 32px;
    margin: 30px auto;
    width: 880px;
}


/* KOLORY */

body {
    background: #70af6b;
    /* Old browsers */
    background: -moz-linear-gradient(top, #70af6b 0%, #bfdc69 50%, #70af6b 100%);
    /* FF3.6+ */
    background: -webkit-gradient(linear, left top, left bottom, color-stop(0%, #70af6b), color-stop(50%, #bfdc69), color-stop(100%, #70af6b));
    /* Chrome,Safari4+ */
    background: -webkit-linear-gradient(top, #70af6b 0%, #bfdc69 50%, #70af6b 100%);
    /* Chrome10+,Safari5.1+ */
    background: -o-linear-gradient(top, #70af6b 0%, #bfdc69 50%, #70af6b 100%);
    /* Opera 11.10+ */
    background: -ms-linear-gradient(top, #70af6b 0%, #bfdc69 50%, #70af6b 100%);
    /* IE10+ */
    background: linear-gradient(to bottom, #70af6b 0%, #bfdc69 50%, #70af6b 100%);
    /* W3C */
    filter: progid: DXImageTransform.Microsoft.gradient( startColorstr='#70af6b', endColorstr='#70af6b', GradientType=0);
    /* IE6-9 */
}