.flexbox1, .flexbox2, .flexbox3 {
    display:flex;
    flex-direction:row;
    flex-wrap:wrap;
    justify-content:space-around;
    align-items: flex-start;
    align-content:space-around;
}
body {
    font-family:Helvetica, sans-serif;
    background-image: url("../documents/tutorial-background.png");
    background-size: cover;
}
h1 {
    color:#ffffff;
    text-align:center;
    font-size:2.5em;
}
h2 {
    text-align:center;
    text-decoration: underline;
}
div.step {
    overflow:auto;
    margin-bottom:25px;
    padding:20px;
    padding-top:0px;
    text-align:center;    
    width:525px;
}
div.step:nth-of-type(3n) {
    background-color:rgb(255, 187, 0);
}
div.step:nth-of-type(3n+1) {
    background-color:rgb(130, 207, 57);
}
div.step:nth-of-type(3n+2) {
    background-color:rgb(228, 83, 47);
}
.link {
    color:blue;
    font-style:italic;
    text-decoration:underline;
}
img {
    display:inline-block;
    max-width: 100%;
}