Typeface plays an important role in the accessibility of a page. Some fonts are easier to read than others, and this is especially true on low-resolution screens.
Change the font for both the h1 and h2 elements to Verdana, and use another web-safe font in the sans-serif family as a fallback.
Also, add a border-bottom of 4px solid #dfdfe2 to h2elements to make the sections distinct.
h1 h2 {
color: Verdana, sans-serif;
}
h2 {
border-bottom: 4px solid #dfdfe2;
}