.fid{
    background-color: gold;    font-size: large;}

#introduction{
    color: mediumturquoise;}

#frags > div:nth-child(10) > div

element.style {
    background-color: lightgray;
}

 .plain div {
    white-space: pre-line;
}

 #frags{
	line-height:150%;
	}