app/assets/stylesheets/diffs.scss
.diff {
$diff-border-width: 5px;
padding: 0px $diff-border-width;
&.unchanged {
margin: 0px $diff-border-width;
}
&.removed {
background-color: #fee;
border-left: $diff-border-width solid red;
border-right: $diff-border-width solid red;
}
&.added {
background-color: #efe;
border-left: $diff-border-width solid green;
border-right: $diff-border-width solid green;
}
}