<div class="box sb1">I'm speech bubble</div>
<div class="box sb2">I'm speech bubble</div>
<div class="box sb3">I'm speech bubble</div>
<div class="box sb4">I'm speech bubble</div>





<!-- By Coding Market -->
<div class="youtube">
  <a href="https://www.youtube.com/channel/UCtVM2RthR4aC6o7dzySmExA" target="_blank">by coding market</a>
</div>

* {
  margin: 0px;
  padding: 0px;
}

.box {
  width: 300px;
  margin: 50px auto;
  background: #00bfb6;
  padding: 20px;
  text-align: center;
  font-weight: 900;
  color: #fff;
  font-family: arial;
  position: relative;
}

.sb1:before {
  content: "";
  width: 0px;
  height: 0px;
  position: absolute;
  border-left: 10px solid #00bfb6;
  border-right: 10px solid transparent;
  border-top: 10px solid #00bfb6;
  border-bottom: 10px solid transparent;
  right: -19px;
  top: 6px;
}

.sb2:before {
  content: "";
  width: 0px;
  height: 0px;
  position: absolute;
  border-left: 10px solid transparent;
  border-right: 10px solid #00bfb6;
  border-top: 10px solid #00bfb6;
  border-bottom: 10px solid transparent;
  left: -19px;
  top: 6px;
}

.sb3:before {
  content: "";
  width: 0px;
  height: 0px;
  position: absolute;
  border-left: 10px solid #00bfb6;
  border-right: 10px solid transparent;
  border-top: 10px solid #00bfb6;
  border-bottom: 10px solid transparent;
  left: 19px;
  bottom: -19px;
}

.sb4:before {
  content: "";
  width: 0px;
  height: 0px;
  position: absolute;
  border-left: 10px solid transparent;
  border-right: 10px solid #00bfb6;
  border-top: 10px solid #00bfb6;
  border-bottom: 10px solid transparent;
  right: 19px;
  bottom: -19px;
}



/* youtube link */
.youtube{
  position: fixed;
  bottom: 10px;
  right: 10px;
  width: 160px;
  text-align: center;
  padding: 15px 10px;
  background: #bb0000;
  border-radius: 5px;
}

.youtube a{
  text-decoration: none;
  color: #fff;
  text-transform: capitalize;
  letter-spacing: 1px;
}

/* Fell free to visit my youtube channel for more updates,
https://www.youtube.com/channel/UCtVM2RthR4aC6o7dzySmExA
*/