.cont_principal {
  position: absolute;
  width: 100%;
  height: 100%;

}

.cont_logo {
  position: absolute;
  width: 280px;
  left:50%;
  top:50%;
  margin-left: -140px;
  margin-top: -260px;
  text-align: center;
}

.cont_centrar {
  position: absolute;
  width: 280px;
  left:50%;
  top:50%;
  margin-left: -140px;
  margin-top: -160px;
  position: relative;
  float: left;
  background-image: linear-gradient(-226deg, #FFFFFF 8%, #EEF3F5 100%);
}

.cent_active {
	z-index: 1;
	-webkit-box-shadow: 0px 0px 20px 5px rgba(0,0,0,0.21);
	-moz-box-shadow: 0px 0px 20px 5px rgba(0,0,0,0.21);
    box-shadow: 0px 0px 20px 5px rgba(0,0,0,0.21);
}


.cont_tabs_login {
position: relative;
  float: left;
  width: 100%;
}

.ul_tabs > li { 
position: relative;
  float: left;
  width: 50%;
  list-style: none;
  text-align: center;

}

.ul_tabs > li > a  {  
text-decoration: none;
font-family: Helvetica;
font-size: 16px;
    color: #999;
line-height: 14px;
padding: 20px ;
display: block;
transition: all 0.5s;
}

  .ul_tabs > .active > a  {  
color: #000;

}

.linea_bajo_nom {
  position: relative;
  width: 100%;
  float: left;
  background-color: #999;
  height: 2px;
}

.active .linea_bajo_nom {
  position: relative;
  width: 100%;
  float: left;
background-color: #000;
height: 2px;
}

.cont_text_inputs {
position: relative;
  float: left;
  width: 100%;
  margin-top: 20px;
}

.input_form_sign {
  position: relative;
  float: left;
  width: 90%;
  border: none;
  border-bottom: 1px solid #B0BEC5 ;
  background-color: transparent;
  font-size: 14px;
  outline: none;
  transition: all 0.5s;
    height: 0px;
    margin: 0px;
    padding: 0px;  
opacity: 0;
display: none;
}

.input_form_sign_yeni {
  position: relative;
  float: left;
  width: 90%;
  border: none;
  border-bottom: 1px solid #B0BEC5 ;
  background-color: transparent;
  font-size: 14px;
  outline: none;
  transition: all 0.5s;
    height: 0px;
    margin: 0px;
    padding: 0px;  
opacity: 0;
display: none;
}

.active_inp {
  margin: 5% 5% ;  
  padding: 10px 0px;
  opacity: 1;
height: 5px;
}



.input_form_sign:focus {
  border-bottom: 1px solid #FF8383 ;}

.link_forgot_pass {
position: relative;
  margin-top: 0px;
  margin-left: 30%;
  text-decoration: none;
  color: #999;
  font-size: 13px;
  display: none;
  float: left;
  transition: all 0.5s;
}
.cont_btn {
  position: relative;
  float: left;
}

.btn_sign {
  border: none;
  position: relative;  
  float: left;
  margin-left: 100px;
  margin-top: 20px;
  margin-bottom: 20px;
}

.terms_and_cons {
  width: 70%;  
  color: #999;
  font-size: 13px;
  transition: all 0.5s;
}

.d_none {
  display: none;
}

.d_block {
  display: block;
}

.cont_text_inputs > input:nth-child(1){
  transition-delay: 0.2s;
}

.cont_text_inputs > input:nth-child(2){
  transition-delay: 0.4s;
}
.cont_text_inputs > input:nth-child(3){
  transition-delay: 0.6s;
}
.cont_text_inputs > input:nth-child(4){
  transition-delay: 0.8s;
}