app/assets/stylesheets/list.css.scss
.at-list-item {
position: relative;
display: block;
background: var(--at-grey);
padding: 15px;
margin-bottom: 15px;
border: 1px solid var(--at-light-shadow-grey);
border-radius: 4px;
box-shadow: 0 1px 3px 1px var(--at-light-shadow-grey);
}
.at-list-item:last-child {
margin-bottom: 0;
}
.at-list-gravatar {
margin-right: 15px;
margin-left: 5px;
}