@media only screen and (max-width: 767px) {
    .intro-header {
        height: 100%;
        padding-top: 50px;
        padding-bottom: 50px;
        color: #f8f8f8;
        background-image: none;
        background-size: cover;
        text-align: center;
        background-color: #34495e;
       
    }
}

.intro-header {
    width: 100%;
    padding-top: 50px;
    color: #f8f8f8;
    text-align: center;
    margin: 0 auto;
    display: block;
    background: url(../../../img/profesorIntro.jpg) no-repeat center center;
    background-size: cover;
    height: 100%;
    bottom: 0px;
    position: absolute;
    
}

.singup-header {
    width: 100%;
    padding-top: 50px;
    color: #f8f8f8;
    text-align: center;
    margin: 0 auto;
    display: block;
    background-size: cover;
    min-height:550px;
}


a {
    cursor: pointer;
}
a:hover {
    color: #337ab7;
}

.signInAnchor {
    right:20px;
    top: 20px;
    font-family: helvetica;
    line-height: 35px;
    font-size: 18px;
    margin-right:30px;
    position:absolute;
}

.login_logo {
background-color:rgba(51 ,51, 255,0.4);
padding:10px; 
margin-top:30px; 
font-size:30px; 
width:250px;
position:absolute;
top:35px;
left:40px;
}

.login_wrapper {
    background-color: rgba(51,51, 255,0.4);
    padding: 30px;
    max-width: 450px;
    margin: 0 auto;
    position: relative;
    -moz-border-radius: 8px;
    -khtml-border-radius: 8px;
    -webkit-border-radius: 8px;
    border-radius: 8px;
    margin-bottom:200px;
}

.signin_wrapper {
    background-color: rgba(255,250, 255,0.75);
    padding: 30px;
    max-width: 450px;
    margin: 0 auto;
    position: relative;
    -moz-border-radius: 8px;
    -khtml-border-radius: 8px;
    -webkit-border-radius: 8px;
    border-radius: 8px;
}
.signup_wrapper {
    padding: 20px;
    max-width: 450px;
    position:absolute;
    top:30px; right:80px;
    z-index:999;
}

.login_wrapper input {
margin-top:8px;
}
.login_wrapper .btn {
float:right; margin-top:10px; 
}

.login {
    height: 100%;
    display: block;
    min-height: 100%;
    font-family: "Helvetica Neue",Helvetica,Arial,sans-serif;
}

html,body{/*height:100%; */
          margin:0 auto; }

.login_title {
font-size:25px;  color:#fff; text-align:left; display:inline-block; margin:0 auto;  float:left; padding:5px;

}


.signin_title {
font-size:25px !important;  color:#696969; text-align:left; display:inline-block; margin:0 auto;  float:left; padding:5px;

}
.reset_pass{color:#f9f9f9; margin-top:10px;display:inline-block;}
.reset_pass:hover{color:#f9f9f9;}

.footer {
    background-color: rgba(242, 244, 244,0.8);
    background-color: rgba(255, 255, 255,0.4);
    position: absolute;
    left: 0;
    bottom: 0px;
    width: 100%;
    padding: 10px;
    font-size: 10px;
    font-family: Arial;

}

    .footer span {
        color: #1c2b33;
        
    }

    .footer a {
        color: #1c2b33;
        
    }
    .footer a:hover {
        text-decoration:underline;
    }

.link_logo { color:#fff;
}

.link_logo:hover {
    color: #fff;
    text-decoration:none;
}