Create a single responsive web page

Hey there! I need a very simple responsive web page to be made. It should be entirely in a single HTML file, and all CSS should be embedded entirely in that one HTML file. There will be an external image, which can be embedded from here: [login to view URL] The page is extremely simple. It will have a solid bright yellow background, and a single transparent PNG on it (that link above), that will be in the upper left of the page, spanning across no more than 1/4 of the page. The rest of the page will have some simple text, and some horizontal lines, and some more text that looks like handwriting (you can use a built in iOS font). There will be one rounded rectangle buttons, of the iOS style (solid black line on the outside, clear inside, with text inside). For instance, look at the OPEN or GET buttons in the App Store.) I want the button to span across the entire width of the responsive page, with a slight margin on the left and right, so that they don't go all the way to the sides. The button will open a URL. It will use a tiny bit of Javascript to make sure the link opens in the default browser. (That's because this page is going to be embedded in an app.) The code is: <div onclick="[login to view URL]('[login to view URL]$EricShapiro', '_system');">External Link</div> The responsive page must work in both portrait and landscape on iPhone, iPad, and Android. The entire bit of work should take about an hour, maybe two at most. See the mockup attached...