YouTube Video

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\n \n `;\n return html;\n }\n\nThen, when the download button is clicked, we call this function with the videoId and trigger the download.\n\nHow to trigger download?\n\n```\n```\nWe'll do that.\n\nSteps in code:\n\n1. HTML: \n - Title: \"YouTube Video Embedder\"\n - Input field for URL (with placeholder)\n - Button: \"Embed Video\"\n - Container for the video (initially empty)\n - Download button (initially hidden)\n\n 2. CSS: \n - Style the input and button, center the form, style the video container.\n\n 3. JavaScript:\n - Listen for the embed button click.\n - Parse the URL to get video ID.\n - If valid, create the iframe and append to the video container, then show the download button.\n - Also, store the video ID for when download is clicked.\n\n - Listen for the download button click.\n - Generate the standalone HTML and trigger download.\n\nLet's code accordingly.\n\nNote: We are not using any external libraries, so we can write vanilla JS.\n\nWe'll write the code in one file: index.html.\n\nWe'll put the CSS in a