body {
    line-height: 1.6;
}
.container {
    display: flex;
    flex-wrap: wrap;
    margin-bottom: 20px;
}
.container.reverse {
    flex-direction: row-reverse;
}
.text {
    flex: 1 1 300px;
    padding: 20px;
}
.image {
    flex: 1 1 300px;
    padding: 20px;
}
img {
    max-width: 100%;
    height: auto;
    display: block;
}