html { margin:0; padding:0; font-size:62.5%; }
body { max-width:800px; min-width:300px; margin:0 auto; padding:20px 10px; font-size:14px; font-size:1.4em; }
h1 { font-size:1.8em; }
.demo { overflow:auto; border:1px solid silver; min-height:100px; }

.jstree-default .jstree-file {
  background: url("./../img/if_User_group_132235.png") 0px 0px no-repeat;
}

.jstree-default .jstree-folder {
  background: url("./../img/if_User_group_132235.png") 0px 0px no-repeat;
}