* {
    margin: 0;
    border: 0;
    padding: 0;
    font-family: Arial, Helvetica, sans-serif;
}

body {
    background-color: rgb(36, 39, 44);
    height: 100vh;
    display: flex;
    flex-wrap: nowrap;
    flex-direction: column;
    align-items: center;
    justify-content: space-evenly;
}

#login_div {
    width: 500px;
    height: 500px;
}

#login_div > form {
    display: flex;
    flex-wrap: nowrap;
    flex-direction: column;
    width: 100%;
    align-items: center;
    font-size: 1em;
    color: #FFF;
}

#login_div > form > fieldset > input {
    font-size: 3em;
    box-shadow: 1px 1px 4px #000;
    margin: 5px;
    padding: 1px 1px;
    border-radius: 3px;
    background-color: #fff;
}

#login_div > form > input:last-child {
    margin: 20px 0;
}

#login_div > form > img {
    margin: 50px 0;
}

#login_div > form > #mostrar_container > #mostrar {
  width: 1em;
  height: 1em;
}

#mostrar_container {
  display: flex;
  flex-direction: row;
  align-items: center;
}


#login_div > form > #mostrar_container > label {
  font-size: 3em;
}

@media (min-width: 1200px)
{
  #login_div {
    width: 500px;
    height: 500px;
  }

  #login_div > form {
      font-size: 12px;
      color: #FFF;
  }

  #login_div > form > fieldset > input {
      font-size: 20px;
  }

  #login_div > form > #mostrar_container > #mostrar {
    width: 20px;
    height: 20px;
  }

  #login_div > form > #mostrar_container > label {
    font-size: 20px ;
  }

}