#contenedor_carga{

	background-color: #252525;
	opacity: .5;
	height: 100%;
	width: 100%;
	position: fixed;
	-webkit-transition: all 1s ease;
	-o-transition: all 1s ease;
	transition: all 1s ease;
	z-index: 1981;

}

#carga {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    -webkit-transform: translate(-50%, -50%);
}


body {
  display: flex;
  flex-direction: column;
  margin: 0;
  min-height: 100vh;
}
 
.contenido {
  flex: 1;
  
}

main {

	background-color: rgba(244, 243, 244);

}


footer {

	background-color: rgb(202, 207, 210);
	color: #000;
	line-height: 2;
	text-align: center;
	width: 100%;

}


.pad_5 { /* cuerpo del formulario*/

	padding-top:5px;

}

.pad_10 { /* cuerpo del formulario*/

	padding-top:10px;

}

.pad_15 { /* cuerpo del formulario*/

	padding-top:15px;

}

.pad_20 { /* cuerpo del rango*/

	padding-top:20px;

}


.mb_25 { /* input con span*/

	margin-bottom: 25px;

}

.form_boton {

	text-align: center;

	padding-top:15px;


}

/*border cuadrados */

.cuadro {

	border-radius: 0;
}

.btn {

	border-radius: 0;
}

.form-control{

	border-radius: 0;
}

.input-group-addon {

	border-radius: 0;
}

.panel {

	border-radius: 0;
}

.panel-heading {

	border-radius: 0;
}

.panel-body {

	border-radius: 0;
}