.ptr--ptr {
    box-shadow: inset 0 -3px 5px rgba(0, 0, 0, 0.12);
    pointer-events: none;
    font-size: 0.85em;
    font-weight: bold;
    top: 0;
    height: 0;
    transition: height 0.3s,
    min-height 0.3s;
    text-align: center;
    width: 100%;
    overflow: hidden;
    display: flex;
    align-items: flex-end;
    align-content: stretch;
    z-index: 99;
  }
.ptr--box {
    padding: 10px;
    flex-basis: 100%;
}
.ptr--pull {
  transition: none;
}
.ptr--text {
  margin-top: .33em;
}
.ptr--icon {
  transition: transform .3s;
} .ptr--release .ptr--icon {
  transform: rotate(180deg);
}