Images are an essential part of a website, it makes a website more engaging and informative. use different classes so that image never overflows from the parent container. add class .img-fluid to make the width of image to 100% and .img-round for a circular image.

<div class="img-ex-conatiner">
    <img
    src="https://images0&q=80"
    class="img-fluid"
    alt="image-fluid-example">
</div>

<div class="img-ex-conatiner">
    <img
    src="https://images.u=80"
    class="img-fluid img-round"
    alt="image-example">
</div>