How can I change div HTML tag via button onclick event using javascript

Question

<nav class="navbar navbar-default" style="...">
    <div class="container" id="main_container" style="margin-top: -80px">
        <div>
            <div class="row">
                <div class="col-xs-0 col-md-2" style="background-color: #f8f8f8;text-align: center;"><a href="http://cve.circl.lu/api/cve/{{ id6 }}" target="_blank">{{ id6 }}</a></div>
                <div class="col-xs-0 col-md-1" style="background-color: #f5f4f5;text-align: center;">{{ rating6 }}</div>
                <div class="col-xs-0 col-md-6" style="background-color: #F8F8F8"><marquee scrollamount="4">{{ description6 }}</marquee></div>
                <div class="col-xs-0 col-md-3" style="background-color: #f5f4f5;text-align: center;">{{ date6 }}</div>
            </div>
            <div class="row">
                <div class="col-xs-0 col-md-2" style="background-color: #f8f8f8;text-align: center;"><a href="http://cve.circl.lu/api/cve/{{ id7 }}" target="_blank">{{ id7 }}</a></div>
                <div class="col-xs-0 col-md-1" style="background-color: #f5f4f5;text-align: center;">{{ rating7 }}</div>
                <div class="col-xs-0 col-md-6" style="background-color: #F8F8F8"><marquee scrollamount="4">{{ description7 }}</marquee></div>
                <div class="col-xs-0 col-md-3" style="background-color: #f5f4f5;text-align: center;">{{ date7 }}</div>
            </div>
            <div class="row" style="margin-top: 5px">
                <div class="col-xs-0 col-md-5">
                </div>
                <div class="col-xs-0 col-md-2" align="center">
                    <button class="btn btn-xs btn-default" type="button" id="my_button">History</button>
                </div>
                <div class="col-xs-0 col-md-5"></div>
            </div>
            <div class="row" style="margin-top: 5px">
                <div class="col-xs-0 col-md-2" style="background-color: #f8f8f8;text-align: center;"><a href="http://cve.circl.lu/api/cve/{{ id8 }}" target="_blank">{{ id8 }}</a></div>
                <div class="col-xs-0 col-md-1" style="background-color: #f5f4f5;text-align: center;">{{ rating8 }}</div>
                <div class="col-xs-0 col-md-6" style="background-color: #F8F8F8"><marquee scrollamount="4">{{ description8 }}</marquee></div>
                <div class="col-xs-0 col-md-3" style="background-color: #f5f4f5;text-align: center;">{{ date8 }}</div>
            </div>
        </div>
    </div>
</nav>

I have a simple header HTML div structure with button id="my_button". On button event onclick the first div tag with id="main_container" should change css directives, in particular margin-top value from -80px to 0px and when margin-top value equals 0px it should be changed to -80px.

I'm new in web development. I guess I need a javascript script function with OnClick event handler.

Shital Marakana · Accepted Answer · 2017-11-06 10:01:56Z

2

use below function for change margin-top by using javascript

<script type="text/javascript">
$(function() {
    $('#my_button').click(function() {
         var margin = $('#main_container').css('margin-top');
         var newMargin = (margin=='-80px')?'0px':'-80px';
         $('#main_container').css('margin-top',newMargin);
    });
});
</script>

answered Nov 6, 2017 at 10:01

Shital Marakana

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Comments

Mik3NL · Accepted Answer · 2017-11-06 10:02:36Z

0

-you should add the margin's into the div using style="margin:xxx%"

You can use this javascript code to make it change when the button is clicked:

function MoveDiv() {
    var e = document.getElementById("YOUR_DIV_id");
    if (e.style.marginTop == '-80px')
    {
        e.style.marginTop = "0px";
    }
    else 
    {
        e.style.marginTop = "-80px";
    }
}

Then you can simply call it with an OnClick function into a button, something like this: <button onClick="MoveDiv()">Click me</button>

answered Nov 6, 2017 at 10:02

Mik3NL

4354 silver badges21 bronze badges

Comments

Suresh Ponnukalai · Accepted Answer · 2017-11-06 10:00:25Z

0

Call a Javascript function on button click and validate the marginTop values.

HTML

  <button class="btn btn-xs btn-default" type="button" id="my_button" onclick="test()">History</button>

JS

  function test() {
    var marginValue = document.getElementById('main_container').style.marginTop;
    if(marginValue == "-80px") {
      document.getElementById('main_container').style.marginTop = "0px";
    } else {
      document.getElementById('main_container').style.marginTop = "-80px";
    }
   }

DEMO

answered Nov 6, 2017 at 10:00

Suresh Ponnukalai

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Comments

Timofey Lavrenyuk · Accepted Answer · 2017-11-06 10:05:05Z

var button = document.querySelector("#my_button");
var container = document.querySelector("#main_container");

button.addEventListener("click", function () {
  container.style.marginTop = "0px"
})

<nav class="navbar navbar-default" style="...">
    <div class="container" id="main_container" style="margin-top: -80px">
        <div>
            <div class="row">
                <div class="col-xs-0 col-md-2" style="background-color: #f8f8f8;text-align: center;"><a href="http://cve.circl.lu/api/cve/{{ id6 }}" target="_blank">{{ id6 }}</a></div>
                <div class="col-xs-0 col-md-1" style="background-color: #f5f4f5;text-align: center;">{{ rating6 }}</div>
                <div class="col-xs-0 col-md-6" style="background-color: #F8F8F8"><marquee scrollamount="4">{{ description6 }}</marquee></div>
                <div class="col-xs-0 col-md-3" style="background-color: #f5f4f5;text-align: center;">{{ date6 }}</div>
            </div>
            <div class="row">
                <div class="col-xs-0 col-md-2" style="background-color: #f8f8f8;text-align: center;"><a href="http://cve.circl.lu/api/cve/{{ id7 }}" target="_blank">{{ id7 }}</a></div>
                <div class="col-xs-0 col-md-1" style="background-color: #f5f4f5;text-align: center;">{{ rating7 }}</div>
                <div class="col-xs-0 col-md-6" style="background-color: #F8F8F8"><marquee scrollamount="4">{{ description7 }}</marquee></div>
                <div class="col-xs-0 col-md-3" style="background-color: #f5f4f5;text-align: center;">{{ date7 }}</div>
            </div>
            <div class="row" style="margin-top: 5px">
                <div class="col-xs-0 col-md-5">
                </div>
                <div class="col-xs-0 col-md-2" align="center">
                    <button class="btn btn-xs btn-default" type="button" id="my_button">History</button>
                </div>
                <div class="col-xs-0 col-md-5"></div>
            </div>
            <div class="row" style="margin-top: 5px">
                <div class="col-xs-0 col-md-2" style="background-color: #f8f8f8;text-align: center;"><a href="http://cve.circl.lu/api/cve/{{ id8 }}" target="_blank">{{ id8 }}</a></div>
                <div class="col-xs-0 col-md-1" style="background-color: #f5f4f5;text-align: center;">{{ rating8 }}</div>
                <div class="col-xs-0 col-md-6" style="background-color: #F8F8F8"><marquee scrollamount="4">{{ description8 }}</marquee></div>
                <div class="col-xs-0 col-md-3" style="background-color: #f5f4f5;text-align: center;">{{ date8 }}</div>
            </div>
        </div>
    </div>
</nav>

But I recommend to use transform for better perfomance. For example:

Before: transform: translateY(-80px). After: transform: translateY(0).

Hanif · Accepted Answer · 2017-11-06 10:07:35Z

Please try following code, I removed your inline style and added css class:

<style>
#main_container { margin-top:0;}
#main_container.margin_top { margin-top:-80px;}
</style>

<nav class="navbar navbar-default" style="...">
<div class="container" id="main_container">
    <div>
        <div class="row">
            <div class="col-xs-0 col-md-2" style="background-color: #f8f8f8;text-align: center;"><a href="http://cve.circl.lu/api/cve/{{ id6 }}" target="_blank">{{ id6 }}</a></div>
            <div class="col-xs-0 col-md-1" style="background-color: #f5f4f5;text-align: center;">{{ rating6 }}</div>
            <div class="col-xs-0 col-md-6" style="background-color: #F8F8F8"><marquee scrollamount="4">{{ description6 }}</marquee></div>
            <div class="col-xs-0 col-md-3" style="background-color: #f5f4f5;text-align: center;">{{ date6 }}</div>
        </div>
        <div class="row">
            <div class="col-xs-0 col-md-2" style="background-color: #f8f8f8;text-align: center;"><a href="http://cve.circl.lu/api/cve/{{ id7 }}" target="_blank">{{ id7 }}</a></div>
            <div class="col-xs-0 col-md-1" style="background-color: #f5f4f5;text-align: center;">{{ rating7 }}</div>
            <div class="col-xs-0 col-md-6" style="background-color: #F8F8F8"><marquee scrollamount="4">{{ description7 }}</marquee></div>
            <div class="col-xs-0 col-md-3" style="background-color: #f5f4f5;text-align: center;">{{ date7 }}</div>
        </div>
        <div class="row" style="margin-top: 5px">
            <div class="col-xs-0 col-md-5">
            </div>
            <div class="col-xs-0 col-md-2" align="center">
                <button class="btn btn-xs btn-default" type="button" id="my_button">History</button>
            </div>
            <div class="col-xs-0 col-md-5"></div>
        </div>
        <div class="row" style="margin-top: 5px">
            <div class="col-xs-0 col-md-2" style="background-color: #f8f8f8;text-align: center;"><a href="http://cve.circl.lu/api/cve/{{ id8 }}" target="_blank">{{ id8 }}</a></div>
            <div class="col-xs-0 col-md-1" style="background-color: #f5f4f5;text-align: center;">{{ rating8 }}</div>
            <div class="col-xs-0 col-md-6" style="background-color: #F8F8F8"><marquee scrollamount="4">{{ description8 }}</marquee></div>
            <div class="col-xs-0 col-md-3" style="background-color: #f5f4f5;text-align: center;">{{ date8 }}</div>
        </div>
    </div>
</div>
</nav>

<script>
var button = document.getElementById('my_button');
var container = document.getElementById('main_container');
button.onclick = function(){
    container.classList.toggle("margin_top");
}
</script>

Ibrahim Riaz · Accepted Answer · 2023-09-21 14:10:22Z

0

function changeMargin() {
   var button = document.getElementById("my_button");
   var container = document.getElementById("main_container");

   button.addEventListener("click", function () {
         if (container.style.marginTop == '-80px') {
            container.style.marginTop = "0px";
         } else 
         {
            container.style.marginTop = "-80px";
         }
   });
}
 
window.addEventListener('load', function () {
   changeMargin();
});

answered Sep 21, 2023 at 14:10

Ibrahim Riaz

11 bronze badge

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