body {
  padding-top: 40px;
  padding-bottom: 40px;
  background-color: #eee;
}

.form-signin {
  margin-top:30%;
  
  max-width: 450px;
  padding: 15px;
  margin: 0 auto;
  border-radius:15px;
  background-color:#282828;
  opacity:.9;
  color:#fff;
  height:auto !important;
}
.form-signin .form-signin-heading,
.form-signin .checkbox {
  margin-bottom: 10px;
}
.form-signin .checkbox {
  font-weight: normal;
}
.form-signin .form-control {
  position: relative;
  height: auto;
  -webkit-box-sizing: border-box;
     -moz-box-sizing: border-box;
          box-sizing: border-box;
  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;
}
.b1
{
	background: url(../images/2.jpg);
    background-size:cover;
}
.b2
{
	background: url(../images/1.jpg);
    background-size:cover;
}
.b3
{
	background: url(../images/3.jpg);
    background-size:cover;
}
.footer
{
	position: absolute;
    bottom: 0;
    width: 100%;
    height: 45px;
    background-color:#282828;
	opacity:.9;
}
.footer p
{
	text-align:center;
	margin-top:10px;
	color:#fff;
}
.footer a
{
 color: #51B356;
}

.letrero
{
	color:#51B356;
	font-size:16px;
	font-weight:bolder;
	text-shadow: 4px 4px 2px rgba(0, 0, 0, .9);
}
.credit
{
  color:#fff;
}
.btn_lang
{
	width:75px !important;
	height:40px !important;
	line-height:40px;
	/*border:solid thin #fff !important;*/
	margin:0 auto;
	color:#fff;
}
.btn_lang:hover
{
	background-color:#fff;
	color:#51B356;
	border:solid thin #000 !important;
	margin:0 auto;
	cursor:pointer;
}
.lang
{
	font-size:14px;
	color:#fff;
	font-weight:bold;
	text-decoration:underline;
	text-shadow: 4px 4px 2px rgba(0, 0, 0, .9);
}
.lang:hover
{
	color:#51B356;
}

.let-r
{
	margin-top:10px; 
	text-align:right;
	padding-right:0;
}
.let-l
{
	margin-top:10px; 
	text-align:left;
	padding-left:0;
}
@media (max-width:768px){
	.let-r
{
	margin-top:10px; 
	text-align:center;
	padding-right:1px;
}
.let-l
{
	margin-top:10px; 
	text-align:center;
	padding-left:1px;
}
}