Humanityâs battle against cancer is an unceasing one, and in recent years, new technologies have steadily improved the odds of beating the disease. According to the Organisation for Economic Cooperation and Development (OECD), the five-year survival rate for breast cancer in most member countries is now over 80 %.
YouTube channel art requirements. Your starting point for your YouTube Channel art is the optimal banner image size of 2560 x 1440 pixels. Thatâs a large image file, and you may not have an appropriate image that is big enough at your disposal.
Choose the optimal size based on how you are using the image: 1  For banners or header images, a file size up to 60KB is acceptable.  For high end photographs, try to keep them to within 100KB at an absolute maximum.