u { text-decoration: underline; }
#update10 #letter_content { width: 100%; text-align: left; margin: 40px auto 50px; }
#update10 #letter_content p { width: 90%; max-width: 680px; line-height: 1.5; margin: 0 auto 20px; }
#update10 #letter_content p.question { font-weight: 700; margin: 0 auto 2px; }
#update10 #letter_content p.answer { margin: 0 auto 28px; }
#update10 #letter_content hr { width: 90%; max-width: 680px; margin: 25px auto; }
#update10 #letter_content hr::before { content: ''; width: 40%; border: 1px solid #d4d4d4; display: inline-block; }
#update10 #letter_content figure { width: 90%; max-width: 680px; line-height: 1.5; margin: 0 auto 20px; }
#update10 #letter_content figure img.portrait { width: 55%; }
#update10 #letter_content figure img.landscape { width: 83%; }
#update10 #letter_content figure figcaption { margin-bottom: 3px; }
#update10 #letter_content a.blue { color: #15c; }
#update10 #letter_content a.blue:hover { color: #ff9908; }