body {
    font-family: 'IBM Plex Sans Condensed', sans-serif;
    font-weight: 300;
    color: #333;
}

img {
    display: block;
    max-width: 100%;
    height: auto;
}

#container {
    max-width: 800px;
    margin: auto;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
}

header {
    background: url(images/headerimg.jpg);
    position: relative;
    height: 0;
    padding-top: 54.1%;
}

header, footer {
    width: 100%;
}

header h1 {
    position: absolute;
    bottom: -30px;
    text-align: center;
    font-size: 36px;
    left:20px;
    transform: rotate(-90deg);
    transform-origin: top left;
}

section, aside {
    width: calc(33.333% - 20px);
}

h1, h2, h3, h4 {
    font-weight: 600;
}

a {
     text-decoration: none;
     color: cornflowerblue;
     font-weight: 600;
}

ul, ol {
    margin: 1em;
    padding: 0;
}

footer {
    background: #e6ede6;
    padding: 20px;
    text-align: center;
    box-sizing: border-box;
}

li {
    margin-bottom: 1em;
}

p {
    line-height: 1.4em;
}