body { font-family: 'Arial', sans-serif; line-height: 1.6; margin: 20px; } h2 { color: #1a237e; } h3 { color: #d32f2f; } p { color: #333; } summary { font-weight: bold; color: #2e7d32; } ul { list-style-type: disc; margin-left: 20px; } blo…

body { font-family: 'Arial', sans-serif; line-height: 1.6; margin: 20px; } h2 { color: #333; border-bottom: 2px solid #333; padding-bottom: 5px; } p { color: #555; } summary { font-weight: bold; color: #222; } strong { color: #e44d26; } a …

body { font-family: 'Arial', sans-serif; line-height: 1.6; margin: 20px; } h1, h2 { color: #333; border-bottom: 2px solid #333; padding-bottom: 5px; margin-bottom: 20px; } h2 { margin-top: 30px; } p { color: #555; } ul { list-style-type: d…

body { font-family: 'Arial', sans-serif; line-height: 1.6; margin: 20px; } h2 { color: #333; border-bottom: 2px solid #ccc; padding-bottom: 5px; } p { color: #555; margin-bottom: 15px; } strong { color: #000; } summary { font-weight: bold;…

body { font-family: Arial, sans-serif; line-height: 1.6; margin: 20px; } h2 { color: #2c3e50; border-bottom: 2px solid #2c3e50; padding-bottom: 5px; } p { margin-bottom: 15px; } はじめに 冷戦時代の米国外交に大きな足跡を残したヘンリー・キッ…