* {
    box-sizing: border-box;
}

body {
    margin: 0;
}

header,
main,
footer {
    width: 100%;
    max-width: 960px;
    margin: 0 auto;
    padding: 12px
}

.demo-card-wide.mdl-card {
    width: 360px;
}

img.article-image {
    width: 100%;
    height: auto;
}

.portfolio-max-width {
    max-width: 960px;
    margin: auto;
}

.portfolio-copy {
    max-width: 700px;
}