Universal design aims to make products and environments usable by all people without needing adaptation. It benefits those with disabilities but also others. There are seven principles of universal design including equitable use, flexibility, perceptible information and tolerance for error. Universal design provides multiple means of representation, engagement and action. It is being implemented in schools through curriculum design to benefit a wide range of students. Websites can apply universal design through high contrast text, sans serif fonts, chunking content, including alt tags and scripts for audio.