iOS стиль Checkbox

<div class="popover">
  <ul>
  <li class="active"><a href="index.html">Закладки</a></li>
  <li class="active"><a href="index.html">Пароли</a></li>
  <li><a href="index.html">Избранное</a></li>
  <li><a href="index.html">История</a></li>
  </ul>
  </div>

.popover {
  position: relative;
  z-index: 10;
  width: 200px;
  padding: 5px;
  border: 1px solid #000;
  border-radius: 11px;
  background-color: #606060;
  background-image: -webkit-gradient(linear, left top, left bottom, color-stop(0%, #606060), color-stop(100%, #4a4a4a));
  background-image: -webkit-linear-gradient(top, #606060, #4a4a4a);
  background-image: -moz-linear-gradient(top, #606060, #4a4a4a);
  background-image: -ms-linear-gradient(top, #606060, #4a4a4a);
  background-image: -o-linear-gradient(top, #606060, #4a4a4a);
  background-image: linear-gradient(top, #606060, #4a4a4a);
  -webkit-box-shadow: inset 0 1px rgba(255, 255, 255, 0.1), inset 0 1px 1px rgba(255, 255, 255, 0.2), inset 1px 0 rgba(255, 255, 255, 0.08), inset -1px 0 rgba(255, 255, 255, 0.08), 0 2px 8px rgba(0, 0, 0, 0.5);
  box-shadow: inset 0 1px rgba(255, 255, 255, 0.1), inset 0 1px 1px rgba(255, 255, 255, 0.2), inset 1px 0 rgba(255, 255, 255, 0.08), inset -1px 0 rgba(255, 255, 255, 0.08), 0 2px 8px rgba(0, 0, 0, 0.5);
}
.popover:before, .popover:after, .popover ul:before {
  display: block;
  content: '';
  width: 0;
  height: 0;
  position: absolute;
  z-index: 11;
  left: 22px;
  border: 7px outset transparent;
}
.popover:before {
  border-bottom: 7px solid #000;
  top: -14px;
}
.popover:after {
  border-bottom: 7px solid #888;
  top: -13px;
}
.popover ul:before {
  z-index: 12;
  border-bottom: 8px solid #666;
  top: -12px;
}
.popover ul {
  overflow: hidden;
  background: #fff;
  border: 1px solid #000;
  border-radius: 7px;
  -webkit-box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.4), 0 1px 1px rgba(255, 255, 255, 0.1), 0 1px rgba(255, 255, 255, 0.1);
  box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.4), 0 1px 1px rgba(255, 255, 255, 0.1), 0 1px rgba(255, 255, 255, 0.1);
}
.popover li {
  display: block;
}
.popover li + li {
  border-top: 1px solid #eee;
}
.popover li:first-child a {
  border-radius: 7px 7px 0 0;
}
.popover li:last-child a {
  border-radius: 0 0 7px 7px;
}
.popover a {
  position: relative;
  display: block;
  line-height: 44px;
  padding: 0 15px 0 48px;
  color: #000;
  font-size: 16px;
  font-weight: bold;
}
.popover a:hover {
  text-decoration: none;
  background: #fff;
  -webkit-box-shadow: 0 0 4px rgba(0, 0, 0, 0.3);
  box-shadow: 0 0 4px rgba(0, 0, 0, 0.3);
}
.popover a:before, .popover a:after {
  position: absolute;
  display: block;
  content: '';
}

/* yraaa.ru */

.popover a:before, .popover .active a:active:before {
  height: 20px;
  width: 20px;
  top: 12px;
  left: 14px;
  border: 0;
  border-radius: 11px;
  background: #f7f7f7;
  -webkit-box-shadow: inset 0 1px 1px 1px rgba(0, 0, 0, 0.2), inset 0 5px 5px rgba(0, 0, 0, 0.1);
  box-shadow: inset 0 1px 1px 1px rgba(0, 0, 0, 0.2), inset 0 5px 5px rgba(0, 0, 0, 0.1);
}
.popover a:after, .popover .active a:active:after {
  display: none;
  width: 11px;
  height: 9px;
  top: 18px;
  left: 19px;
  background: url("http://yraaa.ru/test/80/img/tick.png") center center no-repeat;
}
.popover .active a:before, .popover a:active:before {
  top: 11px;
  left: 13px;
  border: 1px solid #111;
  background-color: #555555;
  background-image: -webkit-gradient(linear, left top, left bottom, color-stop(0%, #777777), color-stop(100%, #404040));
  background-image: -webkit-linear-gradient(top, #777777, #404040);
  background-image: -moz-linear-gradient(top, #777777, #404040);
  background-image: -ms-linear-gradient(top, #777777, #404040);
  background-image: -o-linear-gradient(top, #777777, #404040);
  background-image: linear-gradient(top, #777777, #404040);
  -webkit-box-shadow: inset 0 1px rgba(255, 255, 255, 0.3), 0 1px 2px rgba(0, 0, 0, 0.4);
  box-shadow: inset 0 1px rgba(255, 255, 255, 0.3), 0 1px 2px rgba(0, 0, 0, 0.4);
}
.popover .active a:after, .popover a:active:after {
  display: block;
}