input[type=checkbox].css-checkbox {
  position: absolute;
  z-index: -1000;
  left: -1000px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  height: 1px;
  width: 1px;
  margin: -1px;
  padding: 0;
  border: 0;
}

input[type=checkbox].css-checkbox + label.css-label {
  padding-left: 35px;
  height: 15px;
  width: 15px;
  display: inline-block;
  line-height: 30px;
  background-repeat: no-repeat;
  background-position: 0 0;
  /*font-size: 30px;*/
  vertical-align: middle;
  cursor: pointer;
}

input[type=checkbox].css-checkbox:checked + label.css-label {
  background-position: 0 -30px;
}

label.css-label {
  background-image: url(http://csscheckbox.com/checkboxes/u/csscheckbox_2e5ac342c462fb9a5023b3d13705e60b.png);
  -webkit-touch-callout: none;
  -webkit-user-select: none;
  -khtml-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}

.checkboxes {
}

button.btn.btn-default.login {
  margin-top: 5px;
  margin-bottom: 5px;
  margin-left: 10px;
  margin-right: 10px;
  padding: 5px;
  width: 90%;
  border-radius: 0;
  height: 2em;
  background: #26C281;
  border: 0;
}

input.styled {
  background: #888 !important;
  border: none !important;
  color: #000 !important;
}

.checkbox:before {
  border-radius: 0;
}

nav.navbar.navbar-default.navbar-fixed-top {
  background: #26C281;
  border: 0;
  color: white;
}

.radio label, .checkbox label {
  color: gray;
}

.radio, .checkbox {
  margin-top: 5px;
  margin-bottom: 5px;
  margin-left: 10px;
  margin-right: 10px;
  float: left;
}

.register {
  /*margin: auto;*/
  float: right;
  margin-left: 10px;
  margin-right: 20px;
  margin-top: 5px;
  margin-bottom: 5px;
}

.remember {
  float: right;
  margin-left: 10px;
  margin-right: 20px;
  margin-top: 5px;
  margin-bottom: 5px;
}

.form-group {
  margin-bottom: 15px;
  width: 300px;
}

.input-login {
  margin-top: 5px;
  margin-bottom: 5px;
  margin-left: 10px;
  margin-right: 10px;
  width: 90%;
}

<div class="checkbox" > <label > <input type="checkbox" / > Label </label > </div > {
}

.navbar-default .navbar-nav > .active > a, .navbar-default .navbar-nav > .active > a:hover, .navbar-default .navbar-nav > .active > a:focus {
  background-color: transparent;
}

.navbar-collapse.collapse {
}

li.active {
  background: #00B16A;
  box-shadow: 0 1px 0px 0px #00B16A;
}

.navbar-default .navbar-nav > .active > a {
  background-color: #00B16A;
  box-shadow: 0 1px 0px 0px #00B16A;
  background-image: none;
}

.navbar-default .navbar-nav > li > a:hover {
  background: #00B16A;
}

a {
}

.navbar-default .navbar-nav > .open > a, .navbar-default .navbar-nav > .open > a:hover, .navbar-default .navbar-nav > .open > a:focus {
  background-color: #00B16A;
  color: #ffffff;
}

.dropdown-menu > li > a:hover, .dropdown-menu > li > a:focus {
  text-decoration: none;
  color: #ffffff;
  background-color: #2c3e50;
}