For readability, I have used SCSS here.
.bubble {
position: relative;
width: 200px;
padding: 10px;
border: 1px solid #00ccff;
background: #00ccff;
-webkit-border-radius: 10px;
-moz-border-radius: 10px;
border-radius: 10px;
margin-bottom: 10px;
/*----------------------------
RIGHT ARROW
-----------------------------*/
&:before {
content: '';
position: absolute;
top: 30%;
right: -15px;
border-style: solid;
border-width: 10px 0px 10px 15px;
border-color: transparent #00ccff;
display: block;
width: 0;
z-index: 0;
}
&:after {
content: '';
position: absolute;
top: 30%;
right: -15px;
border-style: solid;
border-width: 10px 0px 10px 15px;
border-color: transparent #00ccff;
display: block;
width: 0;
z-index: 1;
}
/*----------------------------
LEFT ARROW
-----------------------------*/
&:before {
content: '';
position: absolute;
top: 30%;
left: -15px;
border-style: solid;
border-width: 10px 15px 10px 0px;
border-color: transparent #00ccff;
display: block;
width: 0;
z-index: 0;
}
&:after {
content: '';
position: absolute;
top: 30%;
left: -15px;
border-style: solid;
border-width: 10px 18px 10px 0px;
border-color: transparent #00ccff;
display: block;
width: 0;
z-index: 1;
}
}