img {
    width: 250px;
    height: auto;
    position: absolute;

}
#pera, #kaktus {
    left: 10%;
    top: 150px;
}
#ptica {
    left: 60%;
    top: 150px;
}
footer {
    position: absolute;
    bottom: 0;
    height: 50px;
    background-color: aqua;
    width: 100%;
}
p{
    position: relative;
    top: 250px;
}
body {
    background-color: yellow;
    text-align: center;
    margin: 0;
}
a{
    background-color: aqua;
    padding: 1em;
    
    
}
.aktivno {
    background-color: lime;
}
#bum {
    width: 50%;
    left: 25%;
}