body,
html {
    margin: 0;
    padding: 0;
    font-family: sans-serif;
    font-size: 14px;
    background-color: #f5f5f5;
    color: #333;
    height: 100%;
    width: 100%;
}

div.flex-container {
    display: flex;
    flex-wrap: wrap;
    margin: 0 45px 45px 0;
}

div.qvobject {
    flex: 1 1 auto;
    height: 300px;
    min-width: 400px;
    margin: 45px 0 0 45px;
}