This widget uses a very lightweight and efficient script to open a large image in a lightbox window by clicking or tapping a thumbnail image.
The thumbnail image has alt text and an optional caption which can be extended to two or more lines using the HTML line break <br> to create returns. The caption line height can be adjusted and the text aligned left, center or right
The container can have padding, a background with adjustable opacity and a border and/or box shadow.
The lightbox image is responsive up to the width or height of the image file - whichever is greater. It has no caption and is closed by clicking the "X" or the background overlay.