expand-collapse.css

.react-expand-collapse__content {
  position: relative;
  overflow: hidden;
}

.react-expand-collapse__body {
  display: inline;
}

/* expand-collapse button */
.react-expand-collapse__button {
  color: #22a7f0;
  position: absolute;
  bottom: 0;
  right: 0;
  background-color: #fff;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}

.react-expand-collapse__button:before {
  content: '';
  position: absolute;
  top: 0;
  left: -20px;
  width: 20px;
  height: 100%;
  background: linear-gradient(to right, transparent 0, #fff 100%);
}

/* expanded state */
.react-expand-collapse--expanded .react-expand-collapse__button {
  padding-left: 5px;
  position: relative;
  bottom: auto;
  right: auto;
}

.react-expand-collapse--expanded .react-expand-collapse__button:before {
  content: none;
}