div.toggler { background:lightblue; cursor:pointer; }
div.toggler div { display:none; background:white; }

div.toggler1 { background:silver; cursor:pointer; }
div.toggler1 div { display:none; background:red; }

div.toggler2 { background:silver; cursor:pointer; }
div.toggler2 div { display:none; background:white; }

div.toggler3 { background:silver; cursor:pointer; }
div.toggler3 div { display:none; background:white; }