/* Make the header nice */
header {
    margin-top: 2rem;
}
header h1 {
    border-bottom: 1px solid #aaa;
}
header a {
    text-decoration: none;
}

h1 {
    margin-top: 2rem;
}

/* Remove the bullet points from the naviation list. */
.nav ul {
    list-style: none;
}


/* Make the navigation list font size larger. */
.nav li {
    font-size: 1.1em;
}

/* Make the titles inside the main section a bit smaller. */
.main h1 { font-size: 3.0rem; line-height: 1.3;  letter-spacing: -.1rem; }
.main h2 { font-size: 2.0rem; line-height: 1.35; letter-spacing: -.08rem; }
.main h3 { font-size: 1.3rem; line-height: 1.5;  letter-spacing: -.05rem; }
.main h4 { font-size: 1.1rem; line-height: 1.6;  letter-spacing: 0; }

/* Make lists in the article section less spread out. */
article ul, article ol {
    margin-left: 2rem;
}
article ul {
    list-style: square inside;
}
article li {
    margin-bottom: 0.3rem;
}

/* Make the maths font a little smaller. (Default is 1.21) */
.katex { font-size: 1.1em !important; }