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In the subscribe section inside the website footer, the width of the input email field and the subscribe button are not the same, which looks a bit funny. But the page is viewed in medium- and small-sized devices, the width of both the input form and the subscribe button becomes the same.

For this task, please update the width of Subscribe button placed in footer so that its width become same as that of the input field just above it.

Also when one hovers over the button, its gradient/color changes drastically to #777. Modify it such that it behaves in the default way with Bootstrap.

Refer https://github.com/sugarlabs/www-sugarlabs/issues/181 for details.