body{
    font-family: cursive, sans-serif;
    background-color: #4682b4;
}
header,footer{
    background-color: #0F0F64;
    color: white;
    text-align: center;
    padding: 3px;
}
aside{
    width: 20%;
    height: 500px;
    float: left;
}
section{
    float: left;
    width: 80%;
    height: 250px;
    overflow: auto;
}
footer{
    clear: both;
}
img{
    width: 150px;
    padding: 2px;
}
h4{
    text-align: center;
}
a{
    color: white;
    text-decoration: none;
}
a:hover{
    background-color: #2B6BA0;
}
.informacje{
    background-color: #2B6BA0;
    color: white;
    width: 150px;
    height: 150px;
    margin: 10px;
    padding: 5px;
    border-radius: 10px;
    box-shadow: 3px 3px 5px black;
    float: left;
}