bootstrap modal popup example

bootstrap modal popup example on load.

HTML

<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css">
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/js/bootstrap.min.js"></script>
<!-- Button trigger modal -->

<div class="checkboxFour">
  <input type="checkbox" value="1" id="checkboxFourInput" name="" data-toggle="modal" data-target="#myModal" />
  <label for="checkboxFourInput">styled label</label>
</div>

CSS

input[type=checkbox] {
  visibility: hidden;
}

. checkboxFour {
  width: 10px;
  height: 10px;
  background: #ddd;
  margin: 20px 90px;
  border-radius: 100%;
  position: relative;
  box-shadow: 0px 1px 3px rgba(0, 0, 0, 0.5);
}

.checkboxFour label:before {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  margin-right: 3px;
  border-radius: 0;
  transition: all .5s ease;
  cursor: pointer;
  z-index: 1;
  background: #333;
  box-shadow: inset 0px 1px 3px rgba(0, 0, 0, 0.5);
}

.checkboxFour input[type=checkbox]:checked + label:before {
  background: #26ca28;
}

#boxlabel {
  vertical-alignment: middle;
}