This design features a black and white sign with the phrase "Happy Birthday" prominently displayed in the center. The word "Happy" is written in a larger font size than the other words, making it stand out. The word "Birthday" is written in a smaller font size, directly below "Happy." The word "Twenty" is written in a larger font size than "Birthday" but smaller than "Happy," and it is positioned between the words "Happy" and "Birthday." The word "One" is written in a larger font size than "Twenty" but smaller than "Happy," and it is positioned between the words "Twenty" and "Birthday." The word "Day" is written in a larger font size than "One" but smaller than "Happy," and it is positioned below the word "One." The word "Twenty" is written in a cursive font, while the other words are written in a block font. The sign has a simple, clean design with a clear message.