Centering of text inside 'content' property

[adamgiebl]

Describe the bug

To Reproduce

<label class="switch">
  <input type="checkbox">
  <div class="slider">
    <span>On</span>
    <span>Off</span>
  </div>
</label>

.switch {
  font-size: 17px;
  position: relative;
  display: inline-block;
  width: 100px;
  height: 2em;
}

/* The slider */
.slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: #fff;
  color: #000;
  font-weight: 600;
  border-radius: 30px;
  display: flex;
  justify-content: space-around;
  align-items: center;
  transition: .4s;
}

.slider:before {
  position: absolute;
  content: "On";
  height: 90%;
  width: 48%;
  left: 2%;
  border-radius: 20px;
  background-color: white;
  color: green;
  display: grid;
  align-content: center;
  justify-content: center;
  box-shadow: 0 1px 1px 0 rgba(0, 0, 0, 0.2), 0 2px 4px 0 rgba(0, 0, 0, 0.2), 0 -1px 0 0 rgba(0, 0, 0, 0.1) inset, 0 -1.31em 1.31em -1.31em rgba(0, 0, 0, 0.3) inset, 0 0 1px 0 rgba(0, 0, 0, 0.1);
  text-shadow: 0 -1px 0 rgba(0, 0, 0, 0.15);
  transition: .4s;
}

.slider:after {
  content: "";
  position: absolute;
  top: -7px;
  left: -7px;
  right: -7px;
  bottom: -7px;
  border-radius: 1.71em;
  background-image: linear-gradient(0deg, rgba(0, 0, 0, 0.06), rgba(0, 0, 0, 0.1));
  z-index: -1;
}

.switch input:checked + .slider {
  background-color: #21f3a3;
  color: #fff;
}

.switch input:checked + .slider:before {
  content: "Off";
  transform: translateX(100%);
  color: red;
}

.switch input {
  display: none;
}

[gluck]

Fixed in today's release, thanks for the report !