* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html,
body {
    height: 100vh;
    width: 100vw;
}

.background-green {
    padding: 10px;
    width: 100%;
    height: 100%;
    background: #66ba33 url(https://resources.blogblog.com/blogblog/data/1kt/watermark/body_background_flower.png)
        repeat;
    overflow-x: hidden;
}

.text {
    width: 100%;
}

.text > p {
    margin-bottom: 10px;
    width: auto;
}

.text > hr {
    border: 1px solid black;
    margin: 10px;
}

img.image-1 {
    width: 300px;
    float: right;
    margin: 0 20px;
}

@media screen and (max-width: 600px) {
    img.image-1 {
        display: block;
        float: none;
        margin: 0 auto 10px;
    }
}

@media screen and (max-width: 400px) {
    img.image-1 {
        width: 200px;
        display: block;
        float: none;
        margin: 0 auto 10px;
    }
}