.st-block-addition-top {
  transition: all $animation-speed 0.2s ease-in-out;
  text-align: left;
  outline:none;
  border:none;
  width:100%;
  background-color:transparent;
  padding:0;
  z-index: 2;
  position: relative;
  cursor: text;
  display: none;
  
  &::-moz-focus-inner {
    padding:0;
    margin:0;
    margin-left:-1px;
  }

  position: absolute;
  top: -2em;
  height: 30px;
  opacity: 0;
  display: block;

  &:before {
    transition: all $animation-speed 0.1s ease-in-out;
    background: $accent-color;
    position: absolute;
    height: 2px;
    top: 50%;
    left: 110px;
    right: 110px;
    content: "";
    display: block;
    transform: translateY(-50%) translateZ(0);
  }

  .st-block--empty & {
    display: none !important;
  }

  &:hover {
    opacity: 1;
  }

  .st-block--textable &,
  .st-block[data-type="list"] & {
    top: -1.5em;
  }

  .st-block:nth-child(3) & {
    display: none;
  }

  .st-block--empty + .st-block & {
    display: none;
  }
}

.st-block-addition-top__icon {
  transition: all $animation-speed 0.1s ease-in-out;
  border: 1px solid transparent;
  color: #444444;
  position:absolute;
  top: 50%;
  box-sizing:border-box;
  padding-left: 35px;
  display: inline-block;
  margin: 0 auto;
  cursor: pointer;
  opacity: 0.2;
  transform: translateY(-50%) translateZ(0);

  .st-icon {
    width: 41px;
    height: 41px;
    color: inherit;
  }

  .st-block-addition-top:hover &,
  .st-block--active & {
    color: $accent-color;
    opacity: 1;
  }
}

.st-block-addition-top__button {
  position: absolute;
  top: 0;
  left: 76px;
  right: 0;
  bottom: 0;
  display: inline-block;
}