There is a task to move an element on the page. Two ways: through position + left/top or through transform. Which method is preferable and why?

It is preferable to use transform for shifting elements for several reasons:

• Performance: transform is usually processed by the GPU, which avoids repaint and reflow of the page, unlike changing left/top, which affect the document flow.
• Smooth animations: animations with transform are much smoother and do not cause interface 'jerking'.
• Isolation from layout: changing transform does not affect neighboring elements, whereas left/top can cause other elements to shift.

Example of shifting 50px to the right:

.element {
  /* Bad way */
  /* position: relative; left: 50px; */

  /* Preferred way */
  transform: translateX(50px);
}

Thus, if the task is simply to visually shift an element, it is better to use transform.