h1 { color: blue;
	text-align: center; }
h2 { color: green; 
    font-size: 1.2em;
text-align: left;} 
p  { font-family: "Times New Roman", Times, serif;
   text-indent:20px;
   text-align: left;}

a:link,a:visited { 
   color: blue;
   text-decoration: none;}
	
a:hover {
   color: red;
   text-decoration: underline;}

img {
   max-width:1200px}

.zelen{
   color:green;
   font-size:12px;
   font-weight:bold;}
@media (max-width: 1200px){
body{background-color: lightgreen;
margin: 20px
}
nav a {margin: 5px 20px;}
img { max-width: 50%; }
}

@media (max-width: 600px){
body{background-color: gray;
text-align: center;
margin: 10px}
img { max-width: 100%; }
}

nav {background-color: black}
nav a {display: inline-block;
       background-color: green;
       padding: 15px 30px}