style.css

@font-face {
    font-family: lato;
    src: url(lato_bold.ttf);
}

body {
    max-width: 45em;
    min-width: 20em;
    margin: auto;
    padding: 1em;
    font-size: 1.2em;
    line-height: 1.4em;
}

h1, h2 {
    font-family: lato;
}

p {
    text-align: justify;
}

.image-container {
    overflow: auto;
}

img {
    max-width: 13em;
    height: auto;
    float: left;
    margin-right: 1em;
    border-radius: 5px;
}

@media only screen and (max-width: 600px) {
  img {
    float: none;
    display: block;
    margin-right: auto;
    margin-left: auto;
  }
}

a {
    transition: all 300ms ease;
}

a:hover {
    opacity: 0.5;
}

h3 {
    margin-bottom: 0;
}

h4 {
    margin-top: 0;
    margin-bottom: 0;
    font-style: italic;
    font-weight: normal;
    font-size: 0.9em;
}

h3 + p, h4 + p {
    margin-top: 0;
}

footer {
    background-color: blue;
    color: white;
    border-radius: 5px;
    padding: 10px;
    font-family: lato;
    text-align: center;
}