Answers for "bootstrap layout 1 large image left and 3 small images"

bootstrap Aligning images

Align images with the helper float classes or text alignment classes.
block-level images can be centered using the .mx-auto margin utility class.

<img src="..." class="rounded float-left" alt="...">
<img src="..." class="rounded float-right" alt="...">
<img src="..." class="rounded mx-auto d-block" alt="...">

bootstrap image size

.food1 img {
    width:100%;
    height: 230px;
}