#frame {
    position: relative;
    width: 1200px;
    height: 400px;
    border: 1px dashed;
    margin: 40px auto;
    overflow: visible;
    text-align: center;
    font-size: 22px;
}

.noTextSelect {
  -webkit-touch-callout: none;
  -webkit-user-select: none;
  -khtml-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}

.bubble {
  background-color: rgba(59,176,214, 0.83);
  color: #fff;
  text-align: center;
}

.bubble > * {
  max-width: 100%;
  max-height: 100%;
}