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.
Foods rich in zinc can stengthen the immune system and help make hundreds of enzymes in the human body. The best sources of zinc include milk, yeast, peanuts, potato, whole wheat bread, cheese, beans, yogurt, brown rice, wholegrain cereals, etc. There is an interesting relationship between zinc and protein â people who do not include a sufficient amount of protein in their diets do not have sufficient amounts of zinc in their body.
Food Sources of Zinc. The best way to avoid consuming too much zinc is to avoid taking dietary supplements. Focus on eating zinc-rich foods instead. Good sources of zinc include beef, shellfish such as crab or lobster, chicken, cheese, milk and kidney beans. A 3-ounce serving of roast beef provides 7 milligrams of zinc, or about 47 percent of an adult's RDA of zinc.