section {
    width: 100%;
    max-width: 500px;
    margin: 100px auto 0;
}

h1 {
	font-size: 30px;
	text-align: center;
}

.container {
    max-width: 500px;
    margin: 50px auto;
    border-top: 2px solid #0070C0;
    background-color: #f8f8f8;
}
.container > input[name="rd_btn_find"] {
	display: none;
}
.container > input[name="rd_btn_find"]:checked + label {
	background: #007EFF;
	color: #fff;
}
.container > .frm_by {
	display: none;
}
.container > #rd_btn_find_id:checked ~ #frm_by_id {
	display: block;
}
.container > #rd_btn_find_pw:checked ~ #frm_by_pw {
	display: block;
}

.container > input[name="rd_btn_find"]:checked + label {
	background: #007EFF;
	color: #fff;
}

.btn_find {
	float: left;
	width: 50%;
	height: 30px;
	line-height: 30px;
	text-align: center;
	background: #fff;
	font-size: 13px;
}
.frm_by {
	clear: both;
	padding: 50px;
	box-sizing: border-box;
}
#rd1 {
	margin: 20px 0 15px;
}
.frm_by h4 {
	padding: 10px 0;
}
.frm_by .txt_info {
	font-size: 13px;
	margin-bottom: 25px;
}
#user_name_id, #user_name_pw, #email, #pw {
	width: 100%;
	margin: 10px 0 0px;
    padding: 15px;
    box-sizing: border-box;
}
.showId, .showPw {
	padding: 100px 20px;
	margin: 0 auto;
	text-align: center;
	font-weight: bold;
	font-size: 15px;
	display: none;
} 
.btn_box {
	text-align: center;
}
.btn_submit {
	width: 200px;
	height: 50px;
	margin-top: 10px;
	color: #fff;
	background: #1DA1F2;
}
.txt_msg {
	font-size: 22px;
	font-weight: bold;
	padding-bottom: 20px;
}