.demo1{
   border-bottom:1px solid #bde0fd;

	margin-bottom:20px;
	position:relative; background:#FFF;
	
}
.demo1:before,.demo1:after{ 
	content:'';
	width:0;
	height:0;
	position:absolute;line-height:2.5rem;
}
.demo1:before{
    left:40%;
	bottom:-8px;
	border-top:8px solid #4bb1ff;
	border-left:8px solid transparent;
	border-right:8px solid transparent;line-height:2.5rem;
}
.demo1:after{
    left:40%;
	bottom:-6px;
	border-top:6px solid #4bb1ff;
	border-left:6px solid transparent;
	border-right:6px solid transparent;line-height:2.5rem;
}
/*  -- */
.demo2{
    border:1px solid #fec400;
	padding:10px;
	margin-bottom:2px;
	position:relative;
}
.demo2:before,.demo2:after{ 
	content:'';
	width:0;
	height:0;
	position:absolute;
}
.demo2:before{
    left:10px;
	bottom:-8px;
	border-top:8px solid #fec400;
	border-left:8px solid transparent;
	border-right:8px solid transparent;
}
.demo2:after{
    left:12px;
	bottom:-7px;
	border-top:7px solid #fff9e4;
	border-left:6px solid transparent;
	border-right:6px solid transparent;
}


/*  -- */
.demo3{
    background-color:#fe7271; height:2.2rem; line-height:2.2rem; padding-left:12px;
	position:relative;
	margin-bottom:5px; margin-left:20px;
	-moz-border-radius:18px;
    -webkit-border-radius:18px;
    border-radius:18px; color:#FFF;
}
.demo3:before,.demo3:after{ 
	content:'';
	width:0;
	height:0;
	position:absolute;
}
.demo3:before{
    left:-5px;
	top:-3px;
	border-top:30px solid #fe7271;
	border-left:8px solid transparent;
	border-right:8px solid transparent;
	-webkit-transform:rotate(150deg);
	-moz-transform:rotate(150deg);
	-ms-transform:rotate(150deg);
	-o-transform:rotate(150deg);
	transform:rotate(150deg);
}




/* demo4 */
.demo4{
    border:1px solid #fec400;
	padding:10px;
	margin-bottom:2px;
	position:relative; background:#fff9e4; text-align:center;
}
.demo4:before,.demo4:after{ 
	content:'';
	width:0;
	height:0;
	position:absolute;
}
.demo4:before{
    left:48%;
	bottom:-8px;
	border-top:8px solid #fec400;
	border-left:8px solid transparent;
	border-right:8px solid transparent;
}
.demo4:after{
    left:48.5%;
	bottom:-7px;
	border-top:7px solid #fff9e4;
	border-left:6px solid transparent;
	border-right:6px solid transparent;
}