Changing hover menu to OnClick menu.

<style type="text/css">
   * {
  margin: 0px;
  padding: 0px;
 
}
 
nav {
  font-family: Helvetica, Arial, "Lucida Grande", sans-serif;
  line-height: 1.5;
  margin: 50px auto; /*for display only*/
  width: 150px;
  -webkit-box-shadow: 2px 2px 5px rgba(0,0,0,0.2);
     -moz-box-shadow: 2px 2px 5px rgba(0,0,0,0.2);
          box-shadow: 2px 2px 5px rgba(0,0,0,0.2);
}
 
.menu-item {
  background: #fff;
  width: 150px;
}
/*Menu Header Styles*/
.menu-item h4 {
  color: #fff;
  font-size: 15px;
  font-weight: 500;
  padding: 7px 12px;
  background: #a90329;
}.menu-item h4 a {
  color: white;
  display: block;
  text-decoration: none;
  width: 250px;
}
/*Menu Header Styles*/
.menu-item h4 {
  border-bottom: 1px solid rgba(0,0,0,0.3);
  border-top: 1px solid rgba(255,255,255,0.2);
  color: #fff;
  font-size: 15px;
  font-weight: 500;
  padding: 7px 12px;
 
  /*Gradient*/
  background: #a90329; /* Old browsers */
  background: -moz-linear-gradient(top, #A90303 0%, #900202 44%, #5F0000 100%); /* FF3.6+ */
  background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#A90303), color-stop(44%,#900202), color-stop(100%,#5F0000)); /* Chrome,Safari4+ */
  background: -webkit-linear-gradient(top, #A90303 0%,#900202 44%,#5F0000 100%); /* Chrome10+,Safari5.1+ */
  background: -o-linear-gradient(top, #A90303 0%,#900202 44%,#5F0000 100%); /* Opera 11.10+ */
  background: -ms-linear-gradient(top, #A90303 0%,#900202 44%,#5F0000 100%); /* IE10+ */
  background: linear-gradient(top, #A90303 0%,#900202 44%,#5F0000 100%); /* W3C */
  filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#A90303', endColorstr='#5F0000',GradientType=0 ); /* IE6-9 */
}
.menu-item h4:hover {
  background: #cc002c; /* Old browsers */
  background: -moz-linear-gradient(top,  #CD0000 0%, #6E0000 100%); /* FF3.6+ */
  background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#6E0000), color-stop(100%,#6d0019)); /* Chrome,Safari4+ */
  background: -webkit-linear-gradient(top,  #CD0000 0%,#6E0000 100%); /* Chrome10+,Safari5.1+ */
  background: -o-linear-gradient(top,  #CD0000 0%,#6E0000 100%); /* Opera 11.10+ */
  background: -ms-linear-gradient(top,  #CD0000 0%,#6E0000 100%); /* IE10+ */
  background: linear-gradient(top,  #CD0000 0%,#6E0000 100%); /* W3C */
  filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#CD0000', endColorstr='#6E0000',GradientType=0 ); /* IE6-9 */
}
/*First Item Styles*/
.alpha p {
    font-size: 11px;
    padding: 8px 12px;
    color: #aaa;
}
/*ul Styles*/
.menu-item ul {
  background: #fff;
  font-size: 12px;
  line-height: 20px;
  list-style-type: none;
  overflow: hidden;
  padding: 0px;
}
 
.menu-item ul a {
  margin-left: 20px;
  text-decoration: none;
  color: #AE1F1F;
  display: block;
  width: 200px;
}
 
/*li Styles*/
.menu-item li {
  border-bottom: 1px solid #eee;
}
 
.menu-item li:hover {
  background: #eee;
}
/*ul Styles*/
.menu-item ul {
  background: #fff;
  font-size: 12px;
  line-height: 20px;
  height: 0px; /*Collapses the menu*/
  list-style-type: none;
  overflow: hidden;
  padding: 0px;
}
/*ul Styles*/
.menu-item ul {
  background: #fff;
  font-size: 12px;
  line-height: 20px;
  height: 0px;
  list-style-type: none;
  overflow: hidden;
  padding: 0px;
 
  /*Animation*/
  -webkit-transition: height 1s ease;
     -moz-transition: height 1s ease;
       -o-transition: height 1s ease;
      -ms-transition: height 1s ease;
          transition: height 1s ease;
}
.menu-item:hover ul {
  height: 250px;
}
.menu-item ul { margin-top:-1%; margin-bottom:-1%; }
</style>