Table cells overlap with image and relative width

#include <QApplication>
#include <QTextBrowser>

int main(int argc, char *argv[])
{
	QApplication app(argc, argv);
	QTextBrowser browser;
        browser.setHtml("<table><tr><td>"
            "<img src='data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACAAAAAgAQMAAABJtOi3AAAABlBMVEUAAAD///+l2Z/dAAAACXBIWXMAAA9hAAAPYQGoP6dpAAAAE0lEQVQI12NgAIH6////DT4CBACNTWhrz7iOhgAAAABJRU5ErkJggg=='/>"
            "</td><td style='background-color: grey' width='100%'>asdf</td></tr></table>");
	browser.show();
        return app.exec();
}