What is the best way to showcase a div on top of all other elements in an HTML page?

As a newcomer to html and css, I have successfully created a div that contains city names. The issue I am currently facing is when I click on a button to display the div, it gets hidden behind the next section of my page. Take a look at the image below for reference:

What I actually want is for the div to be displayed over the section below it, rather than hiding behind it. For a clearer idea of what I mean, you can visit askme.com and click on the 'rest of india' dropdown button. Here is the HTML code I am using:

<!--start SearchBox section-->
        <section id="searchbox" style="background:white">
            <div class="container" style="margin-top:0px;">


              <div class="row">

                    <div class="col-lg-12">


               <form style="">
                    <center>
                            <div id="SearchBoxBorder" style="background:white;border-style:soli;border-radius:5px;margin-top:20px;width:800px;">
                            <table id="mytable" >
                                    <td style="width:300px;background:white;">
                                       <center> <div class="form-group">
                                                <input type="text" class="form-control" id="exampleInputEmail1" placeholder="I am looking for"
                                                    style="border-width:5px;background:white; margin-top:17px; margin-left:15px; margin-right:10px;width:300px;
                                                    border-style:solid;border-width:5px;border-color:#eee;font-family:Arial,Helvetica,sans-serif;height:42px; font-size:18px;">
                                        </div></center>
                                     </td>

                                     <td style="width:50px ;text-align:right;background:white;"> <center><strong> in</strong></center>    </td>

                                     <td style="width:400px;background:white;">
                                     <center>
                                             <div class="input-group" style="position: relative;">
                                                   <input type="text" class="form-control" placeholder="in locality"
                                                    style="border-width:5px;background:white; margin-top:2px; margin-left:10px; margin-right:20px;width:;">
                                                   <div class="input-group-btn" >
                                                            <button type="button" class="btn btn-default dropdown-toggle"  data-toggle="dropdown" id="dropdownBtn" 
                                                             style="background:white;border-top-width:5px;border-right-width:5px;border-bottom-width:5px;border-left-width:1px;
                                                             border-color:#eee;height:42px;border-radius:0px;text-align:center;color:black; margin-right:20px;margin-top:2px;">Select<span class="caret"></span></button>

                                                             <!--City dropdown -->
                                                                    <div class="SearchCities" id="dialog" title="Basic dialog" >

                                                                            <div id="outer" style="">



                                                                                        <div id="innerLeft" style="">
                                                                                            <h5 >North India:</h5>
                                                                                            <ul class="city" type="none">
                                                                                                    <li><a>Delhi</a></li>
                                                                                                    <li><a>Agra</a></li>
                                                                                                    <li><a>Shrinagar</a></li>
                                                                                                    <li><a>Noida</a></li>
                                                                                                    <li><a>Himachal</a></li>
                                                                                                    <li><a>Patna</a></li>
                                                                                            </ul>

                                                                                        </div>

                                                                                        <div id="innerRight" style="">
                                                                                            <a class="close">&times;</a>
                                                                                            <h5>West India:</h5>
                                                                                            <ul class="city" type="none">
                                                                                                    <li><a>Mumbai</a></li>
                                                                                                    <li><a>Pune</a></li>
                                                                                                    <li><a>Nashik</a></li>
                                                                                                    <li><a>Kolhapur</a></li>
                                                                                                    <li><a>Osmanabad</a></li>
                                                                                                    <li><a>Ahamdabad</a></li>
                                                                                            </ul>
                                                                                        </div>


                                                                            </div><<!--/outer-->
                                                                        </div><<!--/SearchCities-->


                                                             </div><<!-- /btn-group -->
                                                   <button type="button" class="btn btn-primary" style="margin-right:20px;"><i class="icon-search" style="font-size:20px"></i>  Search</button>
                                             </div><<!-- /input-group -->
                                           </center>         
                                     </td>

                            </table>
                        </center>
                    </form>

    </div><<!--/col-lg-12-->
</div><<!--/row-->
    </div><<!--/end of container-->
</section>
<<!--End of SearchBox section-->

In addition, here's the CSS snippet I'm using to attempt displaying the div:

.SearchCities {
  float: right;
  position:absolute;
  margin-top:3px;
  top: 100%;
  right:20px;

}

I appreciate any help or suggestions on how to achieve the desired outcome. Thank you in advance.

After adding .searchCiries{z-index:1;}, the output looks like this:

I aim to prevent the city names from overflowing outside the container div. Any corrections or advice would be greatly appreciated.

javascriptjquerycsshtml

Answer №1

If you want to control the stacking order of elements in CSS, simply include a z-index value such as: z-index:100

Answer №2

For optimal display, consider adding the following CSS rule to your div's class:

    z-index: 9990;

By setting the z-index property to 9990, you ensure that your div will be brought to the front of the stack, unless the z-index value of other elements exceeds 9990 (note that the maximum value is 9999).

Check out more about z-index here: http://www.w3schools.com/cssref/pr_pos_z-index.asp

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