
To set the input height, you can use classes like .input-lg and .input-small. Likewise, to set input width, you can use grid column like .col-lg-*, .col-sm-* etc.
Input Height Sizing
Code Structure
<div class="container">
<form action="#" role="form">
<div class="form-group">
<label for="defaultinput">Default input</label>
<input type="text" id="defaultinput" class="form-control">
</div>
<div class="form-group">
<label for="smallinput">Small input</label>
<input type="text" id="smallinput" class="form-control input-sm">
</div>
<div class="form-group">
<label for="largeinput">Large input</label>
<input type="text" id="largeinput" class="form-control input-lg">
</div>
</form>
</div>
Input Column Sizing
Code Structure
<div class="container">
<form action="#" role="form">
<div class="form-group">
<div class="col-sm-2">
<label for="defaultinput1">Default input</label>
<input type="text" id="defaultinput1" class="form-control">
</div>
</div>
<div class="form-group">
<div class="col-sm-4">
<label for="defaultinput2">Default input</label>
<input type="text" id="defaultinput2" class="form-control">
</div>
</div>
</form>
</div>
Help Text
Code Structure
<div class="container">
<form action="#" role="form">
<div class="form-group">
<label for="user">User Name</label>
<input type="text" id="user" class="form-control">
<span class="help-block">This is some help text.</span>
</div>
</form>
</div>
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