How do I handle cross-browser compatibility

When developing web applications, handling cross-browser compatibility is key to ensuring that your site functions seamlessly across different web browsers. This guide will provide you with useful techniques to address potential issues.
cross-browser compatibility, web development, HTML, CSS, JavaScript, responsive design, browser testing 

    // Example of a cross-browser compatible JavaScript function
    function getElementByIdCrossBrowser(id) {
        if (document.getElementById) {
            return document.getElementById(id);
        } else {
            // Fallback for browsers that do not support getElementById
            var elements = document.getElementsByTagName('*');
            for(var i = 0; i < elements.length; i++) {
                if(elements[i].id == id) {
                    return elements[i];
                }
            }
            return null; // Element not found
        }
    }

cross-browser compatibility web development HTML CSS JavaScript responsive design browser testing

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