css works in Quick css, but not in style.css?

I am using custom font declarations and the following css works fine in Quick CSS, but not in style.css in the child theme:

h1, h2, h3, h4, h5 {
font-family: ‘Hardwood LP Std’;
}

.av-main-nav > li > a {
font-size: 24px !important;
}

#top .menu-item-search-dropdown > a {
font-size: 30px;
}

Why is this? I would rather keep all my css centralized in one place to make it easier to find and edit when necessary, but the styles simply don’t render if I place it in style.css.