Information text block:
{{{%%information
Info: this is inoformation text block
%%}}}
gives you:

%%information
Info: this is inoformation text block
%%

Warning text block:
{{{%%warning
Warning: This is warning text block
%%}}}
gives you:

%%warning
Warning: this is warning text block
%%

Error text block:
{{{%%error
Error: this is error text block
%%}}}
gives you:

%%error
This is error text block
%%