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<!DOCTYPE html> <html> <style> #myProgress { width: 100%; height: 30px; position: relative; background-color: #ddd; } #myBar { background-color: #4CAF50; width: 10px; height: 30px; position: absolute; } </style> <body> <h1>JavaScript Progress Bar</h1> <div id="myProgress"> <div id="myBar"></div> </div> <br> <button onclick="move()">Click Me</button> <script> function move() { const element = document.getElementById("myBar"); let width = 0; const id = setInterval(frame, 10); function frame() { if (width == 100) { clearInterval(id); } else { width++; element.style.width = width + '%'; } } } </script> </body> </html>