So I've been trying to trigger my CSS selector via the checkbox state as you can see below but I've had no luck getting it to trigger. What should happen on click is the tick should simply disappear. 

```
.i-cb input[type="checkbox"]:checked + label::before {
   display: none;
   width:0px;
   height: 0px;
}

```

**JSFiddle** : <https://jsfiddle.net/7tnepc8r/4/>