Add this to the style of an element (P, H3, DIV, etc.):
-webkit-touch-callout: all; /* iOS Safari */ -webkit-user-select: all; /* Safari */ -khtml-user-select: all; /* Konqueror HTML */ -moz-user-select: all; /* Firefox */ -ms-user-select: all; /* Internet Explorer/Edge */ user-select: all; /* Chrome and Opera */
and if you click once on any part of the element, the whole thing is selected/highlighted, ready to be copied to clipboard. No JavaScript!