See the demo site
display/hide an HTML block using an accordion and 'read more' button
syntax: {up readmore=text button | textless=fold} hidden content {/up readmore}
{up readmore=text button | textless=fold}
{/up readmore}
readmore-2
textmore
textless
textmore-style
textmore-class
textless-style
textless-class
panel-style
id
class
style