Can the height of an input element be set to zero?

Currently, I am utilizing CSS transitions to adjust the height of an input element from 40px to 0px in an attempt to make it disappear.

While this technique works effectively for images and yields a satisfactory result, it seems to fall short when applied to input elements.

For inputs, the element does not reach 0px in height and therefore fails to vanish.

I am interested in employing CSS transitions to achieve a gradual disappearance effect for input elements. Is this feasible?

To visualize what an input would look like with a height of 0px, refer to this fiddle:

https://jsfiddle.net/01geLwh7/

.search_bar_input {
  box-sizing: border-box;
  border-radius: 4px;
  border-style: solid;
  border-width: 1px;
  border-color: #dddddd;
  width: 140px;
  background-color: rgba(255, 255, 255, 0);
  margin: 0 auto;
  position: relative;
  top: 6px;
}

#search_bar_input_show {
  height: 40px;
}

#search_bar_input_hide {
  height: 0px;
}
<input class="search_bar_input" id="search_bar_input_hide" name="search" type="text" placeholder=" Search" />

htmlcsscss-animationscss-transitions

Answer №1

To adjust the appearance of the input, you will need to modify the padding and border settings as well:

.search_bar_input {
  box-sizing: border-box;
  border-radius: 4px;
  border-style: solid;
  border-width: 1px;
  border-color: #dddddd;
  width: 140px;
  background-color: rgba(255, 255, 255, 0);
  margin: 0 auto;
  position: relative;
  top: 6px;
}

#search_bar_input_show {
  height: 40px;
}

#search_bar_input_hide {
  height: 0px;
  padding: 0px;
  border: 0px;
}
<input class="search_bar_input" id="search_bar_input_hide" name="search" type="text" placeholder=" Search" />

Answer №2

My preference leans towards utilizing transform: scale() in these scenarios, primarily because of its reliability and functionality. Additionally, the use of scale simplifies size adjustments by eliminating the need to modify height multiple times.

Furthermore, a correction is needed in your HTML code: instead of className, it should be class. (If you are working with React, this may not be applicable; appreciation goes out to tacoshy for mentioning this).

var input = document.querySelector(".search_bar_input");
setInterval(() => {
  if (input.id === "search_bar_input_show") {
    input.id = "search_bar_input_hide";
  } else {
    input.id = "search_bar_input_show";
  }
}, 1000);
.search_bar_input{
  box-sizing: border-box;
  border-radius: 4px;
  border-style: solid;
  border-width: 1px;
  border-color: #dddddd;
  width: 140px;
  background-color: rgba(255, 255, 255, 0);
  margin: 0 auto;
  position: relative;
  top: 6px;
  height: 40px;
  transition: transform 0.5s;
}
#search_bar_input_show{
  transform: scale(1, 1);
}
#search_bar_input_hide{
  transform: scale(1, 0);
}
<input
  class="search_bar_input"
  id="search_bar_input_show"
  name="search"
  type="text"
  placeholder=" Search"
/>

In addition to size adjustments, transform can also facilitate modifications to transform-origin.

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