Bootstrap Images Examples (2019)

Add Featured Tag Above Image – Bootstrap 4
Bootstrap 4
This demonstrates how to use CSS positioning and pseudo elements to created a featured tag above an image. This tag text is created with CSS instead of having the text in the HTML markup.
Jumbotron background image opacity – Bootstrap 4
Bootstrap 4
This code snippet will help you add a background image and change its opacity by adding a color gradient on top of the image. This technique leverages the ability to have multiple background image properties creating a layering effect.
Overlapping Images Using CSS Positioning
Bootstrap 4
This code demo demonstrates how to use absolute positioning to overlap images. But with responsive design, this becomes a challenge because the container does not wrap around the absolute positioned elements. I use a hidden responsive image to correct this and allow things to adapt.
Defer Image Loading Script
Bootstrap 4
If you have large images in a carousel, it would be a good idea to defer loading them to speed up your page load time. This scripts adds a base 64 image placheholder in the html and then uses javascript to replace that with the actual image source. So the document loads and then loads in the images.

How to simulate a slow connection in Google DevTools
Responsive Image Gallery
Bootstrap 4
This demo uses Bootstrap 4 flexbox utility classes and the picture element to built a responsive image gallery. Since it used the responsive image picture tag, it will load quickly on mobile and desktop.
Image Gradient Overlay
All Bootstrap Versions
Adds a transparent color overlay to an image using a pseudo element.