Bootstrap 3 & Boostrap 4 & Bootstrap 5 – input-xs (smaller than sm)

Issue

I wasted a lot of time searching a way to make my own xs size (smaller than the small) for input and input group, so here’s the code!

Peter Butkovic upload the bug/request to the bootstrap github:
https://github.com/twbs/bootstrap/issues/15107

with the following response from theirs:

We won’t be adding it to v3 and I don’t think we’ll have the xs
buttons even in v4, but I’ll keep it in mind for that if we opt to
keep it around.

Still working for Bootstrap 5

Solution

For inputs smallers:

.input-xs {
  height: 22px;
  padding: 2px 5px;
  font-size: 12px;
  line-height: 1.5; /* If Placeholder of the input is moved up, rem/modify this. */
  border-radius: 3px;
}

Sample usage in input-group:

<div class="input-group">
    <span class="input-group-btn">
        <button class="btn btn-xs btn-success">
            <i class="glyphicon glyphicon-plus"></i>
        </button>
    </span>
    <input type="text" class="form-control input-xs" />
    <span class="input-group-btn">
        <button class="btn btn-xs btn-danger">
            <i class="glyphicon glyphicon-minus"></i>
        </button>
    </span>
</div>

Alternatively you can add class to the input-group like this one:

.input-group-xs>.form-control,
.input-group-xs>.input-group-addon,
.input-group-xs>.input-group-btn>.btn {
    height: 22px;
    padding: 1px 5px;
    font-size: 12px;
    line-height: 1.5;
}

and use:

<div class="input-group input-group-xs">
    <span class="input-group-btn">
        <button class="btn btn-success">
            <i class="glyphicon glyphicon-plus"></i>
        </button>
    </span>
    <input type="text" class="form-control" />
    <span class="input-group-btn">
        <button class="btn btn-danger">
            <i class="glyphicon glyphicon-minus"></i>
        </button>
    </span>
</div>
.input-xs {
  height: 22px!important;
  padding: 2px 5px;
  font-size: 12px;
  line-height: 1.5;
  border-radius: 3px;
}
.input-group-xs>.form-control,
.input-group-xs>.input-group-addon,
.input-group-xs>.input-group-btn>.btn {
  height: 22px;
  padding: 1px 5px;
  font-size: 12px;
  line-height: 1.5;
}
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet" />

<div class="input-group">
  <span class="input-group-btn">
    <button class="btn btn-xs btn-success">
      <i class="glyphicon glyphicon-plus"></i>
    </button>
  </span>
  <input type="text" class="form-control input-xs" />
  <span class="input-group-btn">
    <button class="btn btn-xs btn-danger">
      <i class="glyphicon glyphicon-minus"></i>
    </button>
  </span>
</div>
<br/>
<div class="input-group input-group-xs">
  <span class="input-group-btn">
    <button class="btn btn-success">
      <i class="glyphicon glyphicon-plus"></i>
    </button>
  </span>
  <input type="text" class="form-control" />
  <span class="input-group-btn">
    <button class="btn btn-danger">
      <i class="glyphicon glyphicon-minus"></i>
    </button>
  </span>
</div>

Answered By – Leandro Bardelli

Answer Checked By – Marilyn (AngularFixing Volunteer)

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