html,
body {
	background-image: url(../imagens/bg02.jpg);
    background-repeat: no-repeat;
	 width: 100%;            
    height: 100%;  
	background-size:100% 100%;
	-webkit-background-size: 100% 100%;
	-o-background-size: 100% 100%;
	-khtml-background-size: 100% 100%;
	-moz-background-size: 100% 100%;
}
body {
  display: -ms-flexbox;
  display: flex;
  -ms-flex-align: center;
  align-items: center;
  padding-top: 20px;
  padding-bottom: 20px;
  background-color: #ffffff;
}

.form-signin {
  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;
}
.back {
	display: block;
	width: 100%;
	padding-top: 5px;
	padding-right: 25px;
	padding-bottom: 5px;
	padding-left: 25px;
}