.container {
max-width: 800px;
margin: 0 auto;
min-width: 300px;
}
/* 버튼 */
.btn {
padding: 5px;
margin: 5px;
color: black;
text-decoration: none;
text-transform: uppercase;
text-shadow: none;
font-weight: bold;
}
/* 메모리 모듈 */
.mem {
width: 105px;
margin: 5px;
padding: 2px;
}