Bootstrap's CSS is built on Less, a preprocessor with additional functionality like variables, mixins, and functions for compiling CSS. Those looking to use the source Less files instead of our compiled CSS files can make use of the numerous variables and mixins we use throughout the framework.
Oysters contain more zinc per serving than any other food, but red meat and poultry provide the majority of zinc in the American diet. Other good food sources include beans, nuts, certain types of seafood (such as crab and lobster), whole grains, fortified breakfast cereals, and dairy products [2,11].
Milk and Dairy Foods. In addition to being rich sources of calcium, milk and yogurt are also delicious and nutritious sources of zinc. A 1-cup serving of fat-free or low-fat milk contains 7 percent (1 mg) of the daily value of zinc, while one cup of fat-free or low-fat plain yogurt provides 15 percent (2.2 mg).