* {
    font-family: 'Roboto', sans-serif;
    box-sizing: border-box;
}

html, body {
    margin: 0;
    min-height: 100vh;
    background-image: url('gerdiene.jpg');
    background-size: cover;
}

.ketainer {
    box-sizing: border-box;
    overflow:hidden;
    max-width: 900px;
    margin: 0 auto;
    background-color: white;
    margin-top: 20px;
    border-radius: 10px;
}

.binne-ketainer {
    padding: 20px;
}

.navegasie {
    background: gray;
    padding: 10px 20px;
    width: 100%;
}

.navegasie a {
    color: white;
}

.animasie {
    font-size: 30px;
    animation-name: animasie;
    animation-duration: 2s;
    animation-iteration-count: infinite;
}

.aanbeeijing {
    vertical-align: top;
    display: inline-block;
    width: 49%;
}

.aanbeeijing div {
    margin: 20px 10px;
    border: 1px solid black;
    padding: 10px;
}

.aanbeeijing img {
    width: 100%;
}

.pries {
    width: 55px;
    display: block;
    padding: 5px;
    color: white;
    background-color: red;
    font-weight: bold;
    font-size: 20px;
    margin: 10px auto;
}

h1, h1 {
    display: inline-block;
}

@keyframes animasie {
    0% {background-color: red;}
    50% {background-color: yellow;}
    100% {background-color: red;}
}