body {
  background-image: url('../images/background.jpg');
  background-repeat: no-repeat;
  background-attachment: fixed;
  background-color: #464646;
}

.form-signin {
	position: absolute;
	left: 100px;
  top: 30%;
  width: 100%;
  
  max-width: 330px;
  padding: 15px;
  margin: auto;
}

.form-signin .checkbox {
  font-weight: 400;
}

.form-signin .form-control {
  position: relative;
  box-sizing: border-box;
  height: auto;
  padding: 10px;
  font-size: 16px;
}

.form-signin .form-control:focus {
  z-index: 2;
}

.form-signin input[type="email"] {
  margin-bottom: -1px;
  border-bottom-right-radius: 0;
  border-bottom-left-radius: 0;
}

.form-signin input[type="password"] {
  margin-bottom: 10px;
  border-top-left-radius: 0;
  border-top-right-radius: 0;
}

.center {
  text-align: center;
  display: block;
  margin-left: auto;
  margin-right: auto;
  justify-content: center;
}

.label-on {
  display: none;
}

.chart {
  margin-top: -80px;
}

input:checked ~ .label-off {
  display: none;
}

input:checked ~ .label-on {
  display: inline;
}