Images in Bootstrap 3 can be made responsive-friendly via the addition of the `.img-responsive` class. This applies `max-width: 100%;` and `height: auto;` to the image so that it scales nicely to the parent element.
<p>In Internet Explorer 9-10, SVG images with <code>.img-responsive</code> are disproportionately sized. To fix this, add <code>width: 100% \9;</code> where necessary. Bootstrap doesn't apply this automatically as it causes complications to other image formats.</p>
<imgdata-src="holder.js/200x200"class="img-rounded"alt="A generic square placeholder image with rounded corners">
<imgdata-src="holder.js/200x200"class="img-circle"alt="A generic square placeholder image where only the portion within the circle circumscribed about said square is visible">
<imgdata-src="holder.js/200x200"class="img-thumbnail"alt="A generic square placeholder image with a white border around it, making it resemble a photograph taken with an old instant camera">