* {
    margin: 0;
    padding: 0;
}

body {
    width: 70%;
    margin: 0 auto;
    text-align: center;
}

header {
    border: 2px dotted orange;
}

nav {
    display: flex;
    justify-content: space-between;
}

a {
    text-decoration: none;
    color: yellow;
    background-color: orange;
    border-bottom: 3px dotted red;
    padding: 10px;
}

main {
    display: flex;
    justify-content: space-between;
    border: 2px dotted orange;
    margin: 20px 0;
}

.dieren {
    background-color: orange;
    padding: 0 20px 20px 20px;
    width: 15%;
    border: 1px solid black;
}

.dieren img{
    width: 100%;
}

footer {
    display: flex;
    justify-content: space-around;
    border: 2px dotted orange;
    align-items: center;
    text-align: left;
    margin-bottom: 20px;
}