Triangle border

by Raúl Rojas

HTML

<div class="com_box">71</div>
<div class="txt_First">
  Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book.
</div>

CSS

.txt_First {
  font-size: 0.8em;
  text-align: justify;
  padding-bottom: 20px;
}

.com_box {
  width: 60px;
  height: 50px;
  background: black;
  color: white;
  float: left;
  display: flex;
  justify-content: center;
  /* align horizontal */
  align-items: center;
  /* align vertical */
  margin-right: 8px;
  margin-bottom: 5px;
  margin-top: 1px;
}

.com_box:after {
  content: '';
  position: absolute;
  left: 18px;
  top: 50px;
  width: 0;
  height: 0;
  border-left: 20px solid transparent;
  border-right: 20px solid transparent;
  border-top: 20px solid #000;
  clear: both;
}