In the this link the author recommends this 3 lines of code below be added, but I do not understand why as similiar code is found in the CSS seen at the top of the page in the link.
Can someone tell me what is occuring with the 3 lines of code below? The code works great, but I want to understand it.
Add this to the bottom of the CSS before closing the style tag.
.ms-tileview-tile-content img { width:100px!important; height:100px!important; }