a {
  font: Arial, Helvetica, sans-serif;
  font-family: Arial, Helvetica, sans-serif;
  color: lightskyblue;
  text-decoration: none;
  }
a:hover {
  font: Arial, Helvetica, sans-serif;
  font-family: Arial, Helvetica, sans-serif;
  font-weight: normal;
  color: blue;
  text-decoration: none;
  }
body {
  background-color: black;
  font: Arial, Helvetica, sans-serif;
  font-family: Arial, Helvetica, sans-serif;
  color: Silver;
  }
h1, h2, h3, h4, h5, h6, h7 {
  font: Arial, Helvetica, sans-serif;
  font-family: Arial, Helvetica, sans-serif;
  color: Silver;
  }
#zahlavi {
  position: absolute;
  text-align: center;
  width: 795px;
  height: 50px;
  left: 5px;
  top: 5px;
  border: 1px solid silver;
  }
#menu {
  position: absolute;
  text-align: center;
  width: 150px;
  left: 5px;
  top: 60px;
  border: 1px solid silver;
  }
#obsah {
  position: absolute;
  text-align: center;
  left: 160px;
  width: 640;
  top: 60px;
  border: 1px solid silver;
  }