* {
	margin: 0;
	padding: 0;
}

body {
	padding-top: 100px;
	font-size: 18px;
	color: #000;
	font-family: 微软雅黑, Arial, Helvetica, sans-serif;
	 background: #d6eaf2;
}

ul,
li {
	list-style: none;
}

a {
	text-decoration: none;
}

.containor {
	width: 800px;
	margin: 0 auto;
	height: auto;
	padding: 100px 0px;
	position: relative;
}


.btn_extend{
	border: 4px solid #1fa756;	
	display: block;
	width: 50px;
	height: 50px;
	background: #FFFFFF;
	position: relative;
	border-bottom-left-radius: 50px;
	border-bottom-right-radius: 50px;
	border-top-left-radius: 50px;
	border-top-right-radius: 50px;
	transition: all 1s;
	-webkit-transition: all 1s;
	overflow: hidden;
}
.btn{
	width: 200px;
	transition: all 1s;
	-webkit-transition: all 1s;
}
.btn_extend .btn_content{
	cursor: pointer;
display: block;
width: 50px;
height: 50px;	
position: absolute;
/*float: right;*/
border-radius: 100%;
text-align: center;
line-height: 50px;
font-weight: bold;
color:#1fa756 ;
font-size:22px;
text-align: center;
vertical-align: middle;
transition: all .5s;
-webkit-transition: all .5s;
}
.btn_extend .btn_content_fz{
cursor: pointer;
display: block;
width: 50px;
height: 50px;	
position: absolute;
float: right;
border-radius: 100%;
text-align: center;
line-height: 42px;
font-weight: bold;
color:#1fa756 ;
font-size:40px;
vertical-align: middle;
transform: rotate(45deg);
-webkit-transform: rotate(45deg);
transition: all .5s;
-webkit-transition: all .5s;
}
.hide{ display: none;
transition: all 1s;
-webkit-transition: all 1s;
animation-delay: 1s;
-webkit-animation-delay: 1s;}
.show{
	display: block;
}
.sub_btn_pannel{
	margin: 0 auto;
	margin-left: 50px;
	height: 50px;
	width: 150px;
	line-height: 50px;
	position:absolute;
	text-align: center;
	color: #1FA756;
	transition: all 1s;
-webkit-transition: all 1s;
}
.fa{
	margin-right: 20px;
	transition: all 1s;
-webkit-transition: all 1s;
}
#sub_btn_one{
	animation:bounceIndown  1s, 1s ease;
	-webkit-animation:bounceIndown 1s, 1s ease;
}
#sub_btn_two{
	animation:bounceIndown 1.2s, 1.2s ease;
	-webkit-animation:bounceIndown 1.2s, 1.2s ease;
}
#sub_btn_three{
	animation:bounceIndown 1.5s, 1.5s ease;
	-webkit-animation:bounceIndown 1.5s, 1.5s ease;
}
@-webkit-keyframes bounceIndown {

0% {
	opacity: 0;
	-webkit-transform: translate(0, 100px);
	transform: translate(0, 100px)
}

50% {
	opacity: 0;
	-webkit-transform: translate(0, 50px);
	transform: translate(0, 50px)
}
100% {
	opacity: 1;
	-webkit-transform: translate(0, 0);
	transform: translate(0, 0)
}
}