body{
font-family: Arial;
text-align:center;
padding:20px;
background:#f4f4f4;
}

button{
padding:12px;
margin:8px;
font-size:16px;
border-radius:8px;
border:none;
background:#d32f2f;
color:white;
}

#flashcard{
margin-top:20px;
padding:40px;
background:white;
border-radius:10px;
box-shadow:0 0 10px rgba(0,0,0,.2);
font-size:20px;
cursor:pointer;
}

.hidden{
display:none;
}

#question{
font-weight:bold;
}

#answer{
margin-top:20px;
color:green;
}