The function of the contact form on a blog is to make it easier for blog visitors to contact the blog admin. Blogger itself has provided a contact form that is already connected with the Gmail account admin blog. 

Well this time I will share how to create a contact form Blogger popup with Google Maps equipped, so this (Google Maps) will be more to give visitors trust to the blog admin, especially if the blog is used for business or online store. Visitors or consumers will be more confident because the business location is clear. 

Please try on the menu " Contact "

Interested to try it? Please follow the steps below. 

The first thing to do is to register your business location on Google My Business by storing our business location on Google Maps. If you have not yet saved your business location on Google Maps, please follow the following tutorial: 

How to Spot Your Places In Google Maps 

And it will be better, verify also where your business is. 

Once your Business location appears on Google Maps, please follow the next steps. 

Please save the CSS code below above</head> code 

<style type='text/css'>
/<![CDATA[/
{-webkit-box-sizing:border-box;-moz-box-sizing:border-box;box-sizing:border-box}
.container,.container-fluid{margin-right:auto;margin-left:auto}
.contact_right form,.container,.container-fluid{padding-left:15px;padding-right:15px}
.btn,.contact-form-button.contact-form-button-submit{white-space:nowrap;vertical-align:middle;cursor:pointer}
.contact_right img.icon{position:absolute;top:-2px;left:0;border:0}
.row{margin-right:-15px;margin-left:-15px}
#maps-contact{font-size:14px;position:fixed;top:-10000px;left:-10000px;background:#fff;z-index:9999;opacity:0;height:0;overflow-y:auto;overflow-x:hidden}
#maps-contact .container{padding-bottom:20px}
.maps-contact-map{margin-bottom:15px;height:378px}
.contact-form-button.contact-form-button-submit{background-color:#ff7600;-webkit-border-radius:0;-moz-border-radius:0;color:#fff;float:right!important;display:inline-block;padding:6px 12px;margin-bottom:0;font-size:14px;font-weight:400;line-height:1.428571429;text-align:center;background-image:none;border:1px solid transparent;border-radius:0;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;-o-user-select:none;user-select:none}
#ContactForm1_contact-form-error-message,#ContactForm1_contact-form-success-message{width:100%;margin-top:-15px;text-align:left}
#maps-contact p{margin:0 0 10px;font-weight:lighter;position:relative}
#maps-contact p.address{padding-left:27px}
.col-md-4,.col-md-8{position:relative;min-height:1px;padding-right:15px;padding-left:15px}
.btn,.form-control{padding:6px 12px;font-size:14px;line-height:1.42857143;background-image:none}
.clearfix:after,.clearfix:before,.container:after,.container:before,.form-horizontal .form-group:after,.form-horizontal .form-group:before,.row:after,.row:before{display:table;content:" "}
,.clearfix:after,.container:after,.form-horizontal .form-group:after,.row:after{clear:both}
.txt_orange{color:#e67e22}
.form-horizontal .form-group{margin-right:-15px;margin-left:-15px}
.form-group{margin-bottom:15px}
.form-control{display:block;width:100%;height:34px;color:#555;background-color:#fff;border:1px solid #ccc;border-radius:0;-webkit-box-shadow:none;box-shadow:none;-webkit-transition:border-color ease-in-out .15s,-webkit-box-shadow ease-in-out .15s;-o-transition:border-color ease-in-out .15s,box-shadow ease-in-out .15s;transition:border-color ease-in-out .15s,box-shadow ease-in-out .15s}
.pull-right{float:right!important}
.btn{display:inline-block;margin-bottom:0;font-weight:400;text-align:center;-ms-touch-action:manipulation;touch-action:manipulation;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;border:1px solid transparent;}
.btn-orange{background-color:#ff7600;border-bottom:2px solid #d35400;-webkit-border-radius:0;-moz-border-radius:0;border-radius:0;color:#fff}
.btn-orange.active,.btn-orange:active,.btn-orange:focus,.btn-orange:hover{background-color:#d35400;color:#fff;outline:0}
.form-control:focus{border-color:#66afe9;outline:0;-webkit-box-shadow:inset 0 1px 1px rgba(0,0,0,.075),0 0 8px rgba(102,175,233,.6);box-shadow:inset 0 1px 1px rgba(0,0,0,.075),0 0 8px rgba(102,175,233,.6)}
.form-control::-moz-placeholder{color:#999;opacity:1}
.form-control:-ms-input-placeholder{color:#999}
.form-control::-webkit-input-placeholder{color:#999}
.form-control::-ms-expand{background-color:transparent;border:0}
.contact-line-header{margin-top:100px;margin-bottom:80px}
.head_contact{padding-bottom:50px;margin-bottom:0}
.text-center{text-align:center}
.team_hr_left{margin-right:30px;margin-left:15px}
.team_hr_right {margin-left: 30px;}
.team_hr{border:1px solid #fff;width:39.5%}
.team_hr,.thumb-overlay a{float:left}
.hr_gray{border:1px solid #ccc}
hr{margin-top:20px;margin-bottom:20px;border:0;border-top:1px solid #eee;height:0;-webkit-box-sizing:content-box;-moz-box-sizing:content-box;box-sizing:content-box}
.contact-line-header .head-txt{font-size:22px;margin-top:8px;font-weight:lighter}
.txt_darkgrey{color:#333}
.hide_contact{position:absolute;top:30px;right:35px;color:#333;font-size:40px;width:20px;height:20px;line-height:20px;text-align:center;text-decoration:none}
@media (min-width:768px){.container{width:750px}
}
@media (min-width:992px){.container{width:970px}
.col-md-8{width:66.66666667%;float:left}
.col-md-4{width:33.33333333%;float:left}
}
@media (min-width:1200px){.container{width:1170px}
}
/
]]>*/
</style>

And then please save the following code above the code </body> 

        <div id='maps-contact'>
            <div class='container'>
                <div class='row'>
                    <div class='contact-line-header head_contact'>
                        <div class='text-center'>
                            <div class='head-txt'>CONTACT US</div>
                        </div>
                    </div>

                    <div class='col-md-8'>
                        <div class='maps-contact-map' id='map'> </div>
                        <div class='clearfix'/>
                    </div>
                    <div class='col-md-4 contact_right'>
                        <p>Lorem ipsum dolor sit amet, consectetu adipiscing elit pendisse as a molesti.</p>
                        <p class='address'><img alt='icon 1' class='icon' src='https://2.bp.blogspot.com/-7FIRV2qQHxA/WRGcfU4j65I/AAAAAAAArAo/bVPKUot_Cn0gEuzDbtkphHoI0ctErudlgCLcB/s1600/location.png'/>Perum Pesona Estetika A-27, Cikembulan, Sidamulih, Pangandaran, Jawa Barat 46396</p>
                        <p class='address'><img alt='icon 2' class='icon' src='https://2.bp.blogspot.com/-fQq-K9ycuq4/WRGdJa_iBmI/AAAAAAAArAw/5ZaAQGxPcqE5OJu5qIoi63OloSj3dAIjQCLcB/s1600/phone1.png'/090-080-0110</p>
                        <p class='address'><img alt='icon 3' class='icon' src='https://3.bp.blogspot.com/-nEFHMx1Y4g0/WRL8qxYcHQI/AAAAAAAArC0/jOOKuwbLaFoU7NbSk-ncOIoFXqZAnF0kgCLcB/s1600/clock.png'/>Monday - Sunday, 09.00 - 18.00</p>
                        <form class='form-horizontal' name='contact-form'>
                            <div class='form-group'>
                                <input class='form-control' id='ContactForm1_contact-form-name' name='name' placeholder='Your Name...' type='text' value=''/>
                            </div>
                            <div class='form-group'>
                                <input class='form-control' id='ContactForm1_contact-form-email' name='email' placeholder='Your Email...' type='email' value=''/>
                            </div>
                            <div class='form-group'>
                                <textarea class='form-control' id='ContactForm1_contact-form-email-message' name='email-message' placeholder='Write down your message...' style='height: 130px;'/>
                            </div>
                            <button class='btn btn-orange pull-right' id='ContactForm1_contact-form-submit' type='button'>SEND</button><br/>
                            <div style='max-width: 240px; text-align: left; width: 100%;'>
<div id='ContactForm1_contact-form-error-message'>
</div>
<div id='ContactForm1_contact-form-success-message'>
</div>
</div>
                        </form>
                          
                    </div>
                </div><!-- /.row -->
            </div><!-- /.container -->
<a class='hide_contact' href='javascript:void' onclick='hideContact()' title='Close Contact'>&amp;times;</a>
        </div>
<script>
//<![CDATA[
function showContact() {
var o = document.getElementById("maps-contact");
o.style.opacity = "1";o.style.top = "0";o.style.left = "0";o.style.bottom = "0";o.style.right = "0";o.style.height = "100%";
};
function hideContact() {
var o = document.getElementById("maps-contact");
o.style.opacity = "0";o.style.top = "-10000px";o.style.left = "-10000px";o.style.height = "0";
};

// load google map
        var script = document.createElement('script');
        script.type = 'text/javascript';
        script.src = 'https://maps.googleapis.com/maps/api/js?key=AIzaSyCTbFF2Os0UkPBdJ7xPZo3m6Z-a8QyklPU&v=3.exp&sensor=false&' +
            'callback=initialize';
        document.body.appendChild(script);

function initialize() {
  var myLatlng = new google.maps.LatLng(-7.677432, 108.615916);
    var mapOptions = {
      zoom: 14,
      center: myLatlng
    };
    var map = new google.maps.Map(document.getElementById('map'),  mapOptions);
    var marker = new google.maps.Marker({
    position: myLatlng,
    map: map
  });
}
//]]>
</script>
<script src='https://www.blogger.com/static/v1/widgets/2271878333-widgets.js' type='text/javascript'/>
<script type='text/javascript'>
//<![CDATA[
if (typeof(BLOG_attachCsiOnload) != 'undefined' && BLOG_attachCsiOnload != null) { window['blogger_templates_experiment_id'] = "templatesV1";window['blogger_blog_id'] = '2552749739771124482';BLOG_attachCsiOnload(''); }_WidgetManager._Init('//www.blogger.com/rearrange?blogID\x3d2552749739771124482','//kompibarru.blogspot.com/','2552749739771124482');
_WidgetManager._RegisterWidget('_ContactFormView', new _WidgetInfo('ContactForm1', 'footer1', null, document.getElementById('ContactForm1'), {'contactFormMessageSendingMsg': 'Sending...', 'contactFormMessageSentMsg': 'Your message has been sent.', 'contactFormMessageNotSentMsg': 'Message could not be sent. Please try again later.', 'contactFormInvalidEmailMsg': 'A valid email address is required.', 'contactFormEmptyMessageMsg': 'Message field cannot be empty.', 'title': 'Contact Form', 'blogId': '2552749739771124482', 'contactFormNameMsg': 'Name', 'contactFormEmailMsg': 'Email', 'contactFormMessageMsg': 'Message', 'contactFormSendMsg': 'Send', 'submitUrl': 'https://www.blogger.com/contact-form.do'}, 'displayModeFull'));
//]]>
</script>

What I mark yellow please adjust. 

For code -7.677432, 108.615916 is the code of latitude and longitude of your location.Please replace with your location code, to get it please right click on your location in Google Maps then click What's here? Then a box will appear at the bottom. Please copy the code similar to the code. 

kode latitude dan longitudekode latitude dan longitude
Code 2552749739771124482 please replace with your Blog ID code and //kompibarru.blogspot.com/ please replace with your blog domain. 

Then use the following code to display the contact form, can be stored in the menu or where I like you. 
<a href='javascript:void' onclick='showContact()'>CONTACT</a>
Done and good luck ....