#okvir {
    widht:980px
    height:auto;
    margin:auto;
    overflow:hidden;
    }
#lijevo {
    width:480px;
    height:auto:
    overflow:hidden;
    float:left;
    margin-left:10px;
    }
#desno {
    width:480px;
    height:auto:
    overflow:hidden;
    float:left;
    margin-left:10px;
    }