http://stackoverflow.com/questions/3029422/image-auto-resize-to-fit-div-container
http://jsfiddle.net/xwrvxser/1/

http://stackoverflow.com/questions/18606473/css-scale-down-image-to-fit-in-containing-div-without-specifing-original-size


##YAHOO STYLE
<img src="http://l3.yimg.com/bt/api/res/1.2/Oux7ucXHseFEI4XJp512Bw--/YXBwaWQ9eW5ld3M7Zmk9ZmlsbDtoPTEyMDtweW9mZj0zMDtxPTc1O3c9MzAw/http://media.zenfs.com/en_us/gma/us.abcnews.gma.com/GTY_bobbi_kristina_brown_jt_150131_16x9_992.jpg.cf.jpg" width="300" height="120" class="">

thumb-link img {
width: 100%;
height: auto;
}

##Feedly Style
background-position: 0% 100%, 50% 30%;
background-position-x: 0%, 50%;
background-position-y: 100%, 30%;

background-size: cover;
background-position: 50% 20%;
background-position-x: 50%;
background-position-y: 20%;

background-size: cover;
background-position: 50% 20%;
background-position-x: 50%;
background-position-y: 20%;


background-size: cover;
background-position: 50% 20%;
background-position-x: 50%;
background-position-y: 20%;