body {
 font-family: Arial, sans-serif;
 background-color: #f2f2f2;
 color: #222222;
 margin: 0;
 line-height: 1.5;
}
header {
 background-color: #1e3a5f;
 color: white;
 text-align: center;
 padding: 30px 15px;
}
nav {
 background-color: #2e5c99;
 text-align: center;
 padding: 10px;
}
nav a {
 color: white;
 text-decoration: none;
 margin: 0 10px;
 font-weight: bold;
}
nav a:hover {
 text-decoration: underline;
}
main {
 max-width: 900px;
 margin: 0 auto;
 padding: 15px;
}
section {
 background-color: white;
 border: 1px solid #cccccc;
 padding: 15px 20px;
 margin-bottom: 20px;
}
h2 {
 color: #1e3a5f;
 padding-bottom: 5px;
}
h3 {
 color: #2e5c99;
}
.kutija {
 background-color: #e8f0fa;
 padding: 5px 15px;
 margin-bottom: 10px;
}
.primjer {
 background-color: #e6f4e6;
 padding: 8px 12px;
}
table {
 width: 100%;
 border-collapse: collapse;
}
th, td {
 border: 1px solid #999999;
 padding: 8px;
 text-align: left;
}
th {
 background-color: #1e3a5f;
 color: white;
}
img {
 max-width: 100%;
 border: 1px solid #999999;
}
footer {
 background-color: #1e3a5f;
 color: white;
 text-align: center;
 padding: 10px;
}