The oxy_getSomeText(text, length) Function

The oxy_getSomeText(text, length) function allows you to truncate a long string and to set a maximum number of displayed characters.

The following properties are supported:
If an attribute value is very large we can trim its content before it is displayed as static content:
*[longdesc]:before{
  content: oxy_getSomeText(attr(longdesc), 200);
}