A flexible container is an HTML element that uses the display: flex property to responsibly arrange its children. For example, a <div class="container"> with display: flex; justify-content: space-between; allows three internal boxes to automatically resize regardless of the screen size. Line-height and font size are very important on a nutrition label because they ensure the numbers and letters are easy to read. If the font is too small or the line height is too low, the information can tire the reader or even go unnoticed. In a past project, I practiced creating a Flexbox page to organize product cards, and I also experimented with different fonts to make the titles clear and eye-catching. This exercise taught me that structure and typography work together to improve visual communication on the web.