The CSS Transform property applies movement, rotation, skewing, and scaling to the HTML elements in 2D or 3D, while the Transition property helps the change to take place smoothly and swiftly. The Transform property can be used for animations, and it includes properties such as translate, skew, scale, and rotate. These properties can be combined to create more complex transformations. The Transition property is used to add a smooth transition between different states of an element. It requires three main properties: transition-property, transition-duration, and transition-timing-function. The transition-property defines the CSS property where the transition will be applied, while the transition-duration specifies the time span of the transition. The transition-timing-function specifies the speed of the transition throughout the element's duration. Both Transform and Transition properties are essential for creating dynamic and interactive websites without using JavaScript. They can be used to create smooth animations, transitions, and effects, making web development more efficient and enjoyable.