Bootstrap3 color gradient

Quick answer：

Bootstrap 3 supports color gradients using CSS3 linear gradients. You can create gradients by using the 'background-image' property with the 'linear-gradient' function. For example, 'background-image: linear-gradient(to right, red, blue);' This creates a gradient from red to blue going from left to right. Bootstrap also provides pre-defined gradient utilities for quick application in components like buttons and cards.