CSS differs between chrome and safari

Hi,

I've customized the CSS around an avatar in the sidebar of my site ( image below ), and noticed the CSS works fine in Chrome but doesn't work when viewing in Safari.

Will making this a div help?

Site:
wearabl.com

CSS:
`
img.avatar.user-1-avatar.avatar-50.photo {
height: 60px;
width: 60px;
margin-left: 35px;
}