noteweb: Rendering bird field notes for the Web

This style element is used for children of the daily summary, and in other places where we want to set an indented block off with a little more vertical space, and use a hanging indent so continuation lines are indented further.

div.loc-child
{   margin-top: 0.25em;
    margin-bottom: 0.25em;
    margin-left: 3em;
    text-indent: -1em;
}