Good plugin but I have a problem

Hey,

It is the best plugin I discovered for having responsive images.

However, I just have a problem for 2 images on my website which have a special class to be embedded in a green circle shape.

<img alt=”HOME” src=”/wp-content/uploads/2014/11/1af6c2e.jpg” class=”teammember_img”>

.teammember img.teammember_img {height: 176px; width: 176px; box-shadow: 0 0 0 2px #66CC99 ; border-radius: 50%;}

May you help me ?

Thanks