The CSS styles below will make any YouTube video embeds using just the URL responsive. Add this to the bottom of your WordPress theme CSS stylesheet.
.embed-youtube{ position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; max-width: 100%; }
.embed-youtube iframe, .embed-youtube object, .embed-youtube embed { position: absolute; top: 0; left: 0; width: 100%; height: 100%; }
Jacob Lett (Jake) is the founder of Bootstrap Creative, a B2B marketing consultancy specializing in manufacturers and industrial companies. A HubSpot-certified CMS developer, SEO, Answer Engine Optimization (AEO), and RevOps professional, he helps B2B companies improve their websites, search visibility, HubSpot systems, and Google Ads campaigns to generate more qualified leads and RFQs. With over a decade of hands-on experience, he acts as a direct partner for companies seeking measurable ROI from their marketing investment.
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