#signin
{
    display: block;
    margin-left: auto;
    margin-right: auto;
    padding: 20px;
}

#logo
{
    width: 100px;
    height: 72px;
    display: block;
    margin-left: auto;
    margin-right: auto;
}

#enter, #reset
{
    width: 100px;
    display: block;
    height: 50px;
    margin-left: auto;
    margin-right: auto;
}

.buttons
{
    display: block;
    width: 100%;
    margin-left: auto;
    margin-right: auto;
}

#card
{
    margin: auto;
    padding: 10px;
    width: 50%;
    margin-top: 10px;
}


@media only screen and (max-width: 600px)
{
   #card
   {
       width: 80%;
   }
}