Bootstrap Resize Image Keep Aspect Ratio. By setting the width property to 100 you are telling the image to take up all the horizontal space that is available. Making an image responsive means that it should scale according to its parent element.
The max height property sets the maximum height of an element and the max width property sets the maximum width of an element. That is the size of the image should not overflow it s parent and will grow and shrink according to the change in the size of its parent without losing its aspect ratio. The end result is an image that scales up or down perfectly.
The end result is an image that scales up or down perfectly.
With the height property set to auto your image s height changes proportionally with the width to ensure the aspect ratio is maintained. If you set both to 100 the image will be stretched. With the height property set to auto your image s height changes proportionally with the width to ensure the aspect ratio is maintained. The end result is an image that scales up or down perfectly.