/* Vycentrovanej header */
  body{
        margin: 50px 0;
        padding: 0px;
        text-align: center;
        background-color: gray;
        background-repeat:repeat;

    }
    #header{
        width: 750px;
        height: 257;
        margin: 0px auto;
        padding: 15px;
        background-image: url(images/760px-Header-Dark_forest.jpg);
          background-position: center top;
          background-repeat: no-repeat;
    }