Are there alternative methods or technologies, besides PHP, that can be used to achieve transparent backgrounds in images?

To achieve transparent backgrounds in images, one alternative method is to use CSS with the background-color property set to rgba(0,0,0,0) where the last value (0) represents the transparency level. This can be applied to image elements or container elements containing the image. ```html <style> .transparent-image { background-color: rgba(0, 0, 0, 0); } </style> <img src="image.png" class="transparent-image" alt="Transparent Image"> ```