.bubble {
  display: inline-block;
  background: #f0f0f0;
  border-radius: 1em;
  padding: 0.75em 1.2em;
  margin: 1em 0;
  position: relative;
  font-size: 1rem;
  line-height: 1.4;
  max-width: 80%;
  clear: both;
}

.bubble.left {
  float: left;
}

.bubble.right {
  float: right;
  background: #d9edf7;
}

.bubble.left::after {
  content: "";
  position: absolute;
  bottom: -10px;
  left: 1.5em;
  border-width: 10px;
  border-style: solid;
  border-color: #f0f0f0 transparent transparent transparent;
}

.bubble.right::after {
  content: "";
  position: absolute;
  bottom: -10px;
  right: 1.5em;
  border-width: 10px;
  border-style: solid;
  border-color: #d9edf7 transparent transparent transparent;
}

.bubble-wrapper {
  width: 100%;
  overflow: auto; /* or use 'hidden' */
  margin-bottom: 1em;
}