media image shadow box drop

Hi Sakin For my "about" page i'm uploading a jpeg image which is a piece on my brand. The image has a shadow box around it i can't seem to hide. My back ground is white and the back ground of the image is white so it would be nice to get rid of the shadow box so my image blends in. I tried img.wp-post-image { box-shadow: none; } .page .entry-content img { box-shadow: none; But they didn't work. I thought i had it covered all ready as i have .site { box-shadow: none; } already in my custom CSS Any help always massively appreciated Thanks man