form.mbForm { max-width: 900px; margin: 20px auto; }
.mbForm input, .mbForm textarea { display: block; width: 100%; margin: 5px; font-size: 16px; padding: 5px; }
h1 { text-align: center; }
p { margin: 10px; }
.block { background-color: #333; color: #fff; margin: 20px 0; padding: 0 10px; }
.flex-content { display: flex; align-items: flex-start; }
.content { background-color: #eee; padding: 10px; font-size: 16px; flex: 1; }
.linkbox { border: 1px solid #999; }
.linkbox:hover { background: #333; color: #fff; }