how to customise input field width in bootstrap 3 - text

Question

After having removed critical features such as input-xlarge and input-large, what is the substitution for it in bootstrap 3?
Of course I could use col-lg-12 etc but that is giving an error in tab pane.
I could also use style = "width:30px;" but then It would loose its responsiveness unlike input-xlarge.Any suggestions etc?

Answer 1

In Bootstrap 3, .form-control (the class you give your inputs) has a width of 100%, which allows you to wrap them into col-lg-X divs for arrangement. Example from the docs:
<div class="row">
<div class="col-lg-2">
<input type="text" class="form-control" placeholder=".col-lg-2">
</div>
<div class="col-lg-3">
<input type="text" class="form-control" placeholder=".col-lg-3">
</div>
<div class="col-lg-4">
<input type="text" class="form-control" placeholder=".col-lg-4">
</div>
</div>
See under Column sizing.
It's a bit different than in Bootstrap 2.3.2, but you get used to it quickly.

Answer 2

You can use these classes
input-lg
input
and
input-sm
for input fields and replace input with btn for buttons.
Check this documentation http://getbootstrap.com/getting-started/#migration
This will change only height of the element, to reduce the width you have to use grid system classes like col-xs-* col-md-* col-lg-*.
Example col-md-3. See doc here http://getbootstrap.com/css/#grid

Answer 3

<form role="form">
<div class="form-group">
<div class="col-xs-2">
<label for="ex1">col-xs-2</label>
<input class="form-control" id="ex1" type="text">
</div>
<div class="col-xs-3">
<label for="ex2">col-xs-3</label>
<input class="form-control" id="ex2" type="text">
</div>
<div class="col-xs-4">
<label for="ex3">col-xs-4</label>
<input class="form-control" id="ex3" type="text">
</div>
</div>
</form>

Answer 4

i solved with a max-width in my main css-file.
/* Set width on the form input elements since they're 100% wide by default */
input,
select,
textarea {
max-width: 280px;
}
It's a simple solution with little "code"

Answer 5

<div class="form-group">
<div class="input-group col-md-5">
<div class="input-group-addon">
<span class="glyphicon glyphicon-envelope"></span>
</div>
<input class="form-control" type="text" name="text" placeholder="Enter Your Email Id" width="50px">
</div>
<input type="button" name="SIGNUP" value="SIGNUP">
</div>