how to create popup in html with css code example

Example 1: popup box in html

<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1">
<style>
body {font-family: Arial, Helvetica, sans-serif;}

/* The Modal (background) */
.modal {
  display: none; /* Hidden by default */
  position: fixed; /* Stay in place */
  z-index: 1; /* Sit on top */
  padding-top: 100px; /* Location of the box */
  left: 0;
  top: 0;
  width: 100%; /* Full width */
  height: 100%; /* Full height */
  overflow: auto; /* Enable scroll if needed */
  background-color: rgb(0,0,0); /* Fallback color */
  background-color: rgba(0,0,0,0.4); /* Black w/ opacity */
}

/* Modal Content */
.modal-content {
  background-color: #fefefe;
  margin: auto;
  padding: 20px;
  border: 1px solid #888;
  width: 80%;
}

/* The Close Button */
.close {
  color: #aaaaaa;
  float: right;
  font-size: 28px;
  font-weight: bold;
}

.close:hover,
.close:focus {
  color: #000;
  text-decoration: none;
  cursor: pointer;
}
</style>
</head>
<body>

<h2>Modal Example</h2>

<!-- Trigger/Open The Modal -->
<button id="myBtn">Open Modal</button>

<!-- The Modal -->
<div id="myModal" class="modal">

  <!-- Modal content -->
  <div class="modal-content">
    <span class="close">&times;</span>
    <p>Some text in the Modal..</p>
  </div>

</div>

<script>
// Get the modal
var modal = document.getElementById("myModal");

// Get the button that opens the modal
var btn = document.getElementById("myBtn");

// Get the <span> element that closes the modal
var span = document.getElementsByClassName("close")[0];

// When the user clicks the button, open the modal 
btn.onclick = function() {
  modal.style.display = "block";
}

// When the user clicks on <span> (x), close the modal
span.onclick = function() {
  modal.style.display = "none";
}

// When the user clicks anywhere outside of the modal, close it
window.onclick = function(event) {
  if (event.target == modal) {
    modal.style.display = "none";
  }
}
</script>

</body>
</html>

Example 2: como criar uma modal jquery

var modal_estilos = 'display: block;'
+'width: 85%; max-width: 600px;'
+'background: #fff; padding: 15px;'
+'border-radius: 5px;'
+'-webkit-box-shadow: 0px 6px 14px -2px rgba(0,0,0,0.75);'
+'-moz-box-shadow: 0px 6px 14px -2px rgba(0,0,0,0.75);'
+'box-shadow: 0px 6px 14px -2px rgba(0,0,0,0.75);'
+'position: fixed;'
+'top: 50%; left: 50%;'
+'transform: translate(-50%,-50%);'
+'z-index: 99999999; text-align: center';

var fundo_modal_estilos = 'top: 0; right: 0;'
+'bottom: 0; left: 0; position: fixed;'
+'background-color: rgba(0, 0, 0, 0.6); z-index: 99999999;'
+'display: none;';

var meu_modal = '<div id="fundo_modal" style="'+fundo_modal_estilos+'">'
+'<div id="meu_modal" style="'+modal_estilos+'">'
   +'<h5>Esqueceu sua senha?</h5><br />'
      +'<form>'
         +'<div class="row">'
            +'<div class="col-sm-6">'
               +'<div class="form-group">'
                  +'<input name="cpf_cnpj" class="form-control" type="tel" placeholder="CPF/CNPJ" />'
               +'</div>'
               +'<div class="form-group">'
                  +'<input name="email" style="max-width: 55%; float: left;" class="form-control" type="email" placeholder="Email" />'
                  +'<button style="float: left; margin-left: 15px;" type="submit" class="btn btn-secondary">Enviar</button>'
               +'</div>'
            +'</div>'
            +'<div class="col-sm-6" style="text-align: left;">'
               +'Qualquer coisa aqui nesta coluna'
            +'</div>'
         +'</div>'
      +'</form>'
   +'<button type="button" class="close" style="top: 5px; right: 10px; position: absolute; cursor: pointer;"><span>×</span></button>'
+'</div></div>';

$("body").append(meu_modal);

$("#fundo_modal, .close").click(function(){ $("#fundo_modal").hide(); });
$("#meu_modal").click(function(e){ e.stopPropagation(); });

Example 3: popup CSS code

@import "https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css";

body {
  background:#ddd;
  font-family:"Raleway";
}
.center {
  position:absolute;
  top:50%;
  left:50%;
  transform:translate(-50%,-50%);
}
.popup {
  width:350px;
  height:280px;
  padding:30px 20px;
  background:#f5f5f5;
  border-radius:10px;
  box-sizing:border-box;
  z-index:2;
  text-align:center;
  opacity:0;
  top:-200%;
  transform:translate(-50%,-50%) scale(0.5);
  transition: opacity 300ms ease-in-out,
              top 1000ms ease-in-out,
              transform 1000ms ease-in-out;
}
.popup.active {
  opacity:1;
  top:50%;
  transform:translate(-50%,-50%) scale(1);
  transition: transform 300ms cubic-bezier(0.18,0.89,0.43,1.19);
}
.popup .icon {
  margin:5px 0px;
  width:50px;
  height:50px;
  border:2px solid #34f234;
  text-align:center;
  display:inline-block;
  border-radius:50%;
  line-height:60px;
}
.popup .icon i.fa {
  font-size:30px;
  color:#34f234;
} 
.popup .title {
  margin:5px 0px;
  font-size:30px;
  font-weight:600;
}
.popup .description {
  color:#222;
  font-size:15px;
  padding:5px;
}
.popup .dismiss-btn {
  margin-top:15px;
}
.popup .dismiss-btn button {
  padding:10px 20px;
  background:#111;
  color:#f5f5f5;
  border:2px solid #111;
  font-size:16px;
  font-weight:600;
  outline:none;
  border-radius:10px;
  cursor:pointer;
  transition: all 300ms ease-in-out;
}
.popup .dismiss-btn button:hover {
  color:#111;
  background:#f5f5f5;
}
.popup > div {
  position:relative;
  top:10px;
  opacity:0;
}
.popup.active > div {
  top:0px;
  opacity:1;
}
.popup.active .icon {
  transition: all 300ms ease-in-out 250ms;
}
.popup.active .title {
  transition: all 300ms ease-in-out 300ms;
}
.popup.active .description {
  transition: all 300ms ease-in-out 350ms;
}
.popup.active .dismiss-btn {
  transition: all 300ms ease-in-out 400ms;
}

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