h1 {
  margin: 0;
  background: transparent;
}
p {
  color: #000;
}
header {
  color: white;
  background-color: rgba(0,0,150,1);
  padding: 0cm 0.5cm 0cm 0.5cm;
  border-radius: 10px;
  -moz-border-radius: 10px;
  -webkit-border-radius: 10px;
  box-shadow: 2px 2px 2px grey;
  -moz-box-shadow: 2px 2px 2px grey;
  -webkit-box-shadow: 2px 2px 2px grey;
  -o-box-shadow: 2px 2px 2px grey;
}  
header h1 {
  font-size: 42px;
}
.nadpis {
  font-family: "Times New Roman", Times, serif;
  font-size: 60px;
  color: darkblue;
  text-shadow: 5px 5px 5px grey;
  margin: 0;
}
.popis {
  font-size: large;
  color: darkblue;
  background-color: white; 
}
#uctenky {
  float: left;
  max-height: 145px;
  max-width: 100%;
}
h2 {
  text-align: left;
  color: darkblue;
}
header p {
  color: white;
}
nav ul {
  clear: both;
  list-style: none;
  margin: 15px 0 0 0;
  padding: 0;
  color: black;
  overflow: hidden;
  background-color: darkblue; 
}
nav ul li {
  padding: 0;
  float: left;
  font-size: large;
  text-transform: uppercase;
  border-right: 1px solid #bbb;
}
nav ul li:last-child {
    border-right: none;
}
nav ul li a {
    display: block;
    color: white; 
    text-align: center;
    padding: 14px 16px; 
    text-decoration: none;
}
nav ul li a:hover:not(.active) {
    background-color: #111;
}
.active {
    background-color: blue;
}
nav a {
  text-decoration: none;
}  
nav a:hover, nav a:active {
  color: yellow;
  text-decoration: underline;
}
body {
  font-family: Tahoma, Geneva, sans-serif;
  margin: 0;
  padding: 0;
}
#hlavni {
  max-width: 900px;
  margin: 0 auto;
  background-color: white;
}
#prostredni {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 5px;
  background-color: white;
  position: relative;
  overflow: hidden;
}
#levy {
  float: left;
/*  margin-top:25px; */
  padding: 0.2cm 0;
}
#levy p {
  margin: 0.1cm 0.5cm 0.1cm 0.5cm;
}
#levy li {
  margin: 0.1cm 0cm 0.1cm 0cm;
}
#levy a {
    color: black;
}
#levy ul {
  list-style: none;
  padding-left: 0px;
}
#pravy {
  padding: 0.2cm 0;
}
#help {
  max-width: 810px;
  float: right;
  padding: 0.2cm 0.5cm 0.2cm 0.5cm;
}
#help table {
  width: 100%;
}
table, th, td {
  border: 1px solid black;
  border-collapse: collapse;
}
th,td {
  padding: 5px;
}
table#cenik tr:nth-child(even) {
  background-color: #eee;
}
table#cenik tr:nth-child(odd) {
  background-color: #fff;
}
table#cenik th {
  color: white;
  background-color: darkblue;
}
th {
  text-align: left;
}
th.cislo,td.cislo {
  text-align: right;
}
footer {
  background-color: darkblue; 
  text-align: center; 
  padding: 1px 5px;
  font-size: small;
  clear: both;
}  
footer p {
  color: white;
}
#podokno {
  background-color: white;
}

@media only screen and (min-width: 900px) {
  #mobile {
    display: none;
  }
  .nadpis {
    float: left;
  }
  .popis {
    float: right;
  }
  #levy {
    display: block;
    width: 210px;
    min-height: 600px;
  }
  #pravy {
    width: 610px;
    float: right;
  }
  #menubutton2 {
    display: none;
  }
  #hiddenmobile {
    display: none;
  }
}
@media only screen and (max-width: 900px) {
  #normal {
    display: none;
  }
  #hidden {
    display: none;
  }
  #mobile {
    overflow: hidden;
    background-color: darkblue;
    z-index: 2;
  }
  #upperpart {
    height: 66px;
    background-color: #fff;
    overflow: hidden;
  }
  #logo {
    text-align: left;
    margin: 5px 10px;
  }
  .nadpis {
    font-size: 32px;
  }
  .popis {
    font-size: 14px;
    margin: 0;
  }
  #content {
    display: none;
  }
  #mobile a:not(#menubutton) {
    text-align: center;
    color: #fff;
    padding: 10px 16px;
    text-decoration: none;
    font-size: 18px;
    display: block;
    text-transform: uppercase;
    border-bottom: solid 2px #fff;
  }
  #mobile a:hover:not(#menubutton) {
    color: yellow;
    text-decoration: underline;
  }
  #mobile a:hover:not(.active):not(#menubutton) {
    background-color: #111;
  }
  #menubutton {
    padding: 13px;
    color: #000;
    background-color: #fff;
    display: block;
    position: absolute;
    right: 0;
    top: 0;
    border: none;
  }
  #menubutton, #menubutton img {
    height: 40px;
    width: 40px;
  }
  #levy {
    position: absolute;
    left: 0;
    top: 0;
    z-index: 1;
    background-color: #eee;
    padding-top: 0;
    height: 100%;
  }
  #hiddenmobile {
    display: none;
  }
  #hiddenmobile h2 {
    margin: 10px 0;
    font-size: 20px;
  }
  #hiddenmobile, #hiddenmobile h2 {
    text-align: center;
    padding: 0 10px;
  }
  #pravy {
    margin-left: 45px;
  }
  #menubutton2 {
    display: block;
    padding-top: 5px;
  }
  #menubutton2 img {
    width: 40px;
    height: 40px;
  }
  #podokno img {
    max-width: 100%;
  }
}