Responsive web design has become a critical aspect of modern web development due to the growing prevalence of mobile device usage, which surpasses desktops and laptops. The transition towards responsive design has made it imperative for developers to ensure that websites adapt seamlessly across various screen sizes and resolutions. Key to this is the handling of images, which require strategies like the use of HTML's `srcset` and `picture` elements for resolution switching and art direction, as well as CSS properties such as `object-fit` and media queries for styling. Challenges persist with maintaining responsiveness across different browsers, particularly older ones like Internet Explorer, where developers must employ alternative methods such as setting image widths to 100% or using plugins. WordPress has integrated responsive image features since version 4.4, automatically creating multiple image copies with varying resolutions. Tools like the LT Browser facilitate responsive testing by allowing developers to view and debug their websites across multiple devices simultaneously. Despite these advancements, developers must remain vigilant in ensuring that all aspects of responsiveness, including image maps and browser compatibility, are addressed to provide a smooth user experience on all devices.