changing the default width of bootstrap modal

Question

I am trying to change the default width of the dialog but it's not working.I have tried solutions mentioned in this post. Here is my HTML code below:

<style>

#myDialog .modal-dialog{

width:80%;

}


</style>


<div id="myDialog" class="modal fade" tabindex="-1" role="dialog">
    <div class="modal-dialog" role="document">
        <div class="modal-content">
            <div class="modal-header">
                <button type="button" class="close" data-dismiss="modal" aria-label="Close"><i class="fa fa-times"></i></button>
                <div class="modal-title" id="Dialog_title">Text Document</div>
            </div>
            <div class="modal-body">

                <div id="my_doc_content"></div>

            </div>
            <div class="modal-footer">
                <button type="button" class="btn btn-default" data-dismiss="modal" onclick="rg.closeDialog('myDialog');">Close</button>
            </div>
        </div>
    </div>
</div>

And adding the the `modal-lg` class doesn't work or it's too wide for you? — IndieRok, Aug 08 '16 at 16:05
Adding `
` didn't result in any change for me. The size was same. — John, Aug 08 '16 at 16:20

score 9 · Answer 1 · answered Aug 08 '16 at 17:47

9

Override the .modal-dialog width

.modal-dialog{
   width: 80%;
   margin: auto;
}

Place this piece of code in after the bootstrap.min.css to override its default width.

Here is working fiddle

answered Aug 08 '16 at 17:47

M.Tanzil

1,987
1
12
28

working fine but it is not responsive – Sapna Dorbi Oct 08 '21 at 08:44

score 3 · Accepted Answer · edited Sep 04 '19 at 20:58

Here is a JSFiddle that may help you: Working JSFiddle

When CSS style is added on the class .modal instead of .modal-dialog, you can then simply change the width of the modal as you want by the following code:

.modal{
    width: 80%; /* respsonsive width */
    margin-left:-40%; /* width/2) */ 
}

$(function() {
  $("#myDialog").modal("show");
});

.modal-dialog {
  width: 80%;
  margin: auto;
}
.modal{
  width: 80%; /* respsonsive width */
  margin-left:-40%; /* width/2) */ 
}

<div id="myDialog" class="modal fade" tabindex="-1" role="dialog">
  <div class="modal-dialog" role="document">
    <div class="modal-content">
      <div class="modal-header">
        <button type="button" class="close" data-dismiss="modal" aria-label="Close"><i class="fa fa-times"></i></button>
        <div class="modal-title" id="Dialog_title">Text Document</div>
      </div>
      <div class="modal-body">

        <div id="my_doc_content"></div>

      </div>
      <div class="modal-footer">
        <button type="button" class="btn btn-default" data-dismiss="modal" onclick="rg.closeDialog('myDialog');">Close</button>
      </div>
    </div>
  </div>
</div>

Hope this helps you!

https://jsfiddle.net/2n63gm6f/1/ this is not responsive and this answer is not working for me. Can you suggest something? — Sapna Dorbi, Oct 08 '21 at 08:42

score 0 · Answer 3 · answered Aug 08 '16 at 17:15

I always suggest to work with non-built files, working with sources you can take benefits from variables, mixins and, when needed, add/modify some default behaviour not explicitly exposed...

so, going to https://github.com/twbs/bootstrap/blob/v4.0.0-alpha.3/scss/_modal.scss you can see where sizes are defined and add/edit them as you need...

// example
@include media-breakpoint-up(lg) {
  .modal-extralg { max-width: $modal-lg * 2; }
}

score 0 · Answer 4 · edited Aug 11 '17 at 12:44

0

Just use id:

#myDialog {
    width:80%;
}

edited Aug 11 '17 at 12:44

Stephen Rauch

47,830
31
106
135

answered Aug 11 '17 at 12:27

Ria

11
3

score 0 · Answer 5 · edited Aug 14 '20 at 15:47

0

If you using bootstrap 4+, there are default optional sizes, check this

You can make modal-md, modal-lg in different grid sizes

Example:

div class="modal-dialog modal-xl modal-dialog-centered" role="document"

edited Aug 14 '20 at 15:47

Umutambyi Gad

4,082
3
18
39

answered Aug 14 '20 at 11:19

Ravi

81
1
8

changing the default width of bootstrap modal

5 Answers5