.main-head{
  height: 150px;
  background: #FFF;
 
}

.sidenav {
  height: 100%;
  background-color: #000;
  overflow-x: hidden;
  padding-top: 20px;
}

.main {
  padding: 0px 10px;
}

@media screen and (max-height: 450px) {
  .sidenav {padding-top: 15px;}
}

@media screen and (max-width: 768px) {
  .login-form{
    margin-top: 1em;
}

.register-form{
    margin-top: 1em;
}
}

@media screen and (min-width: 768px){
  
  .main{
      margin-left: 40%; 
  }

  .sidenav{
      width: 40%;
      position: fixed;
      z-index: 1;
      top: 0;
      left: 0;
  }

  .login-form{
      margin-top: 80%;
  }

  .register-form{
      margin-top: 20%;
  }
}


.login-main-text{
  margin-top: 20%;
  padding: 60px;
  color: #fff;
}

.login-main-text h2{
  font-weight: 300;
}

.btn-black{
  background-color: #000 !important;
  color: #fff;
}

.logo {
  padding-bottom: 1em;
  width: 190px;
}