app/styles/components/_avatars.scss
.avatar {
white-space: nowrap;
overflow: hidden;
text-overflow: ellipsis;
line-height: normal;
}
.avatar-image {
display: inline-block;
vertical-align: middle;
border-radius: 999em;
}
.avatar-image--small {
width: 25px;
height: 25px;
}
.avatar-image--medium {
width: 75px;
height: 75px;
}
.avatar-image--large {
width: 100px;
height: 100px;
}