.responsive-img { max-width:100%; display:block; height:auto; }

responsive img

.responsive_img { width: 100%; height: auto; object-fit: cover; /* Prevent the image from stretching. So it crops the image to prevent from awkward stretching */ }

responsive image in css

<img src="img.png" style="max-width:100%;height:auto;">

responsive images

<p> <a href="MY WEBSITE LINK" target="_blank"> <img src="IMAGE LINK" style='width:100%;' border="0" alt="Null"> </a> </p>

making image responsive