jQuery addClass example

Change class name on click in jQuery

HTML

<div class="menu">
  <input type="checkbox" id="hmt" class="hidden-menu-ticker">
  <label class="btn-menu" for="hmt">
    <span class="first"></span>
    <span class="second"></span>
    <span class="third"></span>
  </label>
  <ul class="hidden-menu">
    <li><a href="">Link 1</a></li>
    <li><a href="">Link 2</a></li>
    <li><a href="">Link 3</a></li>
  </ul>
</div>

CSS

.hidden-menu {
  display: block;
  position: fixed;
  list-style: none;
  padding: 10px;
  margin: 0;
  box-sizing: border-box;
  width: 400px;
  background-color: #eee;
  height: 100%;
  top: 0;
  left: -400px;
  transition: left .2s;
  z-index: 2;
  -webkit-transform: translateZ(0);
  -webkit-backface-visibility: hidden;
}

.hidden-menu-ticker {
  display: none;
}

.btn-menu {
  color: #fff;
  background-color: #666;
  padding: 5px;
  position: fixed;
  top: 5px;
  left: 5px;
  cursor: pointer;
  transition: left .23s;
  z-index: 3;
  width: 25px;
  -webkit-transform: translateZ(0);
  -webkit-backface-visibility: hidden;
}

.btn-menu span {
  display: block;
  height: 5px;
  background-color: #fff;
  margin: 5px 0 0;
  transition: all .1s linear .23s;
  position: relative;
}

.btn-menu span.first {
  margin-top: 0;
}

.hidden-menu-ticker:checked~.btn-menu {
  left: 360px;
}

.hidden-menu-ticker:checked~.hidden-menu {
  left: 0;
}

.hidden-menu-ticker:checked~.btn-menu span.first {
  -webkit-transform: rotate(45deg);
  top: 10px;
}

.hidden-menu-ticker:checked~.btn-menu span.second {
  opacity: 0;
}

.hidden-menu-ticker:checked~.btn-menu span.third {
  -webkit-transform: rotate(-45deg);
  top: -10px;
}

header {
  background-color: #666;
  color: #fff;
  text-align: center;
  padding: 5px;
}

h1 {
  margin: 0;
  padding: 0;
  font-size: 2em;
}

JavaScript

$(document).click(function(event) {
  $target = $(event.target);
  if (!$target.closest('.menu').length) {
    $("#hmt").prop("checked", false);;
  }
});