#css grammar Below is the simplest CSS code. h1 { color: red } There are three words, h1, color and red, called selectors, attributes and values, respectively. Selector: Decide what to decorate. h1 means to decorate the h1 element. Property: Decide what shape to decorate. color means to decorate a color. Value: Determines how to decorate. Red means to make it red. In other words, the CSS code is..