Daily micro-tips for C#, SQL, performance, and scalable backend engineering.
Serving same 4K image to mobile users? Picture element lets you serve different images per device, saving 80% bandwidth and loading 3x faster. The Old Way – One Image for All: <img src=”hero-4k.jpg” alt=”Hero” /> <!– Problems: – Mobile downloads 5MB 4K image – Only displays 800px wide on phone – Wasted 80% of bandwidth […]
Still using Bootstrap modals or custom JavaScript? The native <dialog> element handles accessibility, focus trapping, and backdrop clicks automatically. The Complete HTML: <!– The dialog element –> <dialog id=”myModal”> <form method=”dialog”> <h2>Confirm Action</h2> <p>Are you sure you want to delete this item?</p> <div class=”actions”> <button value=”cancel”>Cancel</button> <button value=”confirm” autofocus>Delete</button> </div> </form> </dialog> <!– Trigger button […]