Expanding button width within Bootstrap 3 input-group: a step-by-step guide

When trying to utilize the input-group feature to showcase an input for quantity, a "Qty." label, and an "Add to basket" button all inline, the default behavior of full width creates an issue. How can I adjust the width so that the input has a fixed width of 40 pixels while allowing the button to be full width?

<div class="input-group">
  <input type="text" class="form-control" aria-label="Amount (rounded to the nearest dollar)" style="width: 40px; float: right;">
  <span class="input-group-addon">Qty.</span>
  <span class="input-group-btn">
    <button aria-label="Add" name="inWarenkorb" type="submit" value="Add" class="submit btn btn-primary" style="width:100%">
      <span>Add to basket</span>
    </button>
    </span>
</div>

For more information and testing purposes, check out the JSFIDDLE: https://jsfiddle.net/d53g68hw/

Answer №1

If you want to modify the CSS of the input-group, change display: table to display: block. For the input-group-btn, adjust width from 1% to 100% and also set display to block.

Answer №2

One way to solve this issue is by setting the width of the Button with the class input-group-btn to 100%

.input-group-btn{
 width: 100%
}

https://jsfiddle.net/ex7rbhpw/1/

If your Input Group (input-group) uses display: table, you can set one "cell" (specifically, your span with the class input-group-btn) to occupy the entire width of 100%. However, keep in mind that the button may not take up the full 100% due to minimum widths, content, or padding of other "cells" (span-tags) within the input group.

Answer №3

To achieve the desired layout, you can utilize the CSS property display: table for the parent container input-group, along with display: table-cell for its child elements. Here's an example:

.input-group > * {  
  display:table;
  width:100%;
}

.input-group > * {  
  display: table-cell;
}

.input-group > .form-control, .input-group > .input-group-addon {
  width: 40px;
}
.input-group > .input-group-btn, .input-group > .input-group-btn > button {
  width: 100%;
}

I hope this helps!

Answer №4

If you need a block-level button, you can implement it like this:

<button type="button" class="btn btn-primary btn-lg btn-block">Click here</button>

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