Optimizing WordPress for faster load times is ... (10 x 3500 pixels, for example). This should only take around 1-2 K in ... Minify External JavaScript and CSS Files in Your WordPress Theme.

For example, the popular free Contact Form 7 plugin, which has over 5M installations, loads CSS and JS files on all pages – whereas one only needs it to load where the contact form exists.

WordPress uses a combination of PHP, HTML and CSS to render the appearance of a blog. If the CSS contains invalid code, the blog will fail to display as intended, as the Web browser won't ...