h1    {color: black;}
h2    {color: black; font-style: italic;}
a         {text-decoration: none}
a:link    {color: #FF9900}
a:visited {color: green}
a:active  {color: black}
a:hover   {color: red; text-decoration: underline}


#uvod{position: absolute; width: 500px; height: 500px ;top: 10px; left: 50px; z-index: 1}
#vyuka{position: absolute; width: 500px; top: 150px; left: 50px; z-index: 1}
#dulezite{position: absolute; width: 500px; height: 350px; top: 250px; left: 50px; z-index: 1; overflow: scroll}
#moudra{position: absolute; width: 500px; top: 600px; left: 50px; z-index: 1}
#hlavicka {position: absolute; width: 960px; height: 20px; top: 0px; left: 0px; background-color: #35aae7; opacity: 0.2}
#levy {position: absolute; width: 150px; height: 400px; top: 0px; left: 0px; background-color: #35aae7; opacity: 0.2}
#ubuntu{position: absolute; width: 310px; top: 220px; left: 700px}
#cviceni{position: absolute; width: 700px; top: 650px; left: 50px; z-index: 1; border-style: double; border-collapse: collapse; background-color:aqua}
#spodek{position: absolute; width: 500px; height: 20px; top: 960px; left: 50px; z-index: 1}