body {
    background: #D6DBC6 url(main_bg.png) repeat-x;
    margin: 0;
}
#obal {
    width: 786px;
    margin: 0 auto;
    position: relative;
}
#page {
    width: 772px;
    margin: 0 auto;
    background: #FFF;
    min-height: 495px;
}
#obal_left {
    width: 7px;
    height: 495px;
    position: absolute;
    background: url(shadow_left.gif) repeat-x;
}
#obal_right {
    width: 7px;
    height: 495px;
    position: absolute;
    right: 0;
    background: url(shadow_right.gif) repeat-x;
}
#obsah {
    padding: 30px;
}
.clear {
    clear: both;
}
img {
    border: 0;
}