This CSS code is styling a class called ".some_class". The properties inside define the following styles: 1. `position: absolute;`: This positions the element absolutely in relation to its closest positioned ancestor (if any). In this case, it will be positioned within the nearest ancestor that has a position other than static (e.g., relative, absolute, fixed). 2. `top: 50%;`: This moves the top of the element down to 50% of the height of its containing element. 3. `left: 50%;`: This moves the left side of the element to 50% of the width of its containing element. 4. `transform: translate(-50%, -50%);`: This is a CSS transform that moves the element to the left by 50% of its own width and up by 50% of its own height. This is commonly used to center an element both vertically and horizontally within its container. Overall, this CSS code centers an element with the class ".some_class" in the middle of its closest positioned ancestor both vertically and horizontally. Just make sure that the ancestor has `position: relative` set for proper positioning.