h4 {
	color:#B1B1B1;
	font-weight:100;
	font-size:14px;
}
#div_editor {
	width:400px;
	border:1px solid #A9A9A9;
}
#div_editor textarea {
	border:0px;
	width:398px;
	height:45px;
	outline:0px;
	resize:none;
}
#div_editor div.d-last {
	text-align:right;
	font-size:10px;
	color:#B1B1B1;
	display:none;
}
#btn_submit {
	color:white;
	background-color:#8AC328;
	width:80px;
	height:25px;
	border:1px solid #9CC868;
	margin:1px;
}
当用户想在一个输入框中输入一下字,但是不能输太多,这时候就要有字数限制,但是还可以时时显示还可输入多少字