Input's caret height

Question

I need help to change the caret's height - without changing the visual (hacks/tricks allowed as long as they work).
With that I mean I don't want to change the font's size (height and width), margins, paddings, color, background, border, etc, and if I do change it to achieve the caret's style, make it possible so I can put it back like a normal input, with it's styling capacities.

My best attempt was the following code:

body{
  background-color: lightBlue;
}
#background{
  color: red;
  height: 61px;
  margin-top: 0px;
  text-shadow: 0 0 0 transparent;
  width: 173px;
  -webkit-text-fill-color: transparent;
  -webkit-transform: scale(1,calc(1/3));
}
#text{
  background-color: transparent;
  border-color: transparent;
  color: red;
  left: 8px;
  pointer-events: none;
  position: absolute;
  top: 103px;
}

<span>Caret's height (pixels):</span>
<br>
<br>
<input placeholder="15 (default)" spellcheck="false">
<br>
<br>
<input id="background" oninput="document.getElementById('text').value=this.value" spellcheck="false">
<input id="text" placeholder="5 (1/3)" onfocus="this.blur()" spellcheck="false" tabindex="-1">

Ignore the text's selection weirdness if you need. I'm not caring about that for now.

If you have a way better solution, let me know. This is just some tests I have been doing, I don't exactly need the color to be red and the other attributes to be the way they are, but I do want it to still be possible to change them to whatherver I want.

Here's how it looks to me in case people don't get the same (using Chrome):

Answer 1

It can be done, via "hacks".

Instead of an input box, you'd need a combination of javascript, css and span's...

source: codepen

source: blog

source: jsfiddle

document.documentElement.setAttribute("class", "js");

var searchFauxInput = document.querySelector(".fb-Search_FauxInput");
var searchBox = document.getElementById("Input");

searchBox.addEventListener("keyup", function copyInput(event) {
      searchFauxInput.textContent = searchBox.value;
      searchBox.setAttribute("value", searchBox.value);
}, false);

* {
box-sizing: border-box;
}

body {
  background-color: #555;
  font-family: sans-serif;
}

.fb-Search {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  height: 44px;
  padding: 5px 70px 5px 5px;
  width: 400px;
  position: relative;
  background-color: #e4e4e4;
}

.fb-Search_Input {
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
}

.js .fb-Search_Input {
  position: absolute;
  left: -100vw;
}

.fb-Search_FauxInput {
  display: none;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  max-width: 80%;
  margin-top: 14px;
  border: 0;
  font-size: 20px;
  font-size: 1.3rem;
  color: #777;
  background-color: #e4e4e4;
  border-right: 3px solid transparent;
  height: 3px;
}

.js .fb-Search_FauxInput {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
}

.fb-Search_Input:focus ~ .fb-Search_FauxInput {
  -webkit-animation: pulseAttention 1.5s cubic-bezier(.215, .61, .355, 1) forwards infinite;
  animation: pulseAttention 1.5s cubic-bezier(.215, .61, .355, 1) forwards infinite;
}

.fb-Search_Label {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  padding: 5px;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  color: #a7a7a7;
  font-size: 15px;
}

.fb-Search_Input:not([value=""]) ~ .fb-Search_Label {
  -webkit-box-pack: end;
  -ms-flex-pack: end;
  justify-content: flex-end;
}

@-webkit-keyframes pulseAttention {
  50% {
    border-color: green;
  }
}

@keyframes pulseAttention {
  50% {
    border-color: green;
  }
}

<div class="fb-Search">
	<input id="Input" class="fb-Search_Input" value="">
	<span class="fb-Search_FauxInput" dir="rtl"></span>
	<label class="fb-Search_Label" for="Input">Search</label>
</div>