body { background-color: #ffffff; margin: 0; padding: 0; font-family: "Hiragino Kaku Gothic Pro", "ヒラギノ角ゴ Pro W3", メイリオ, "ＭＳ Ｐゴシック", sans-serif; color: #282828; font-size: 100%; font-weight: normal; }
a { color: gray; text-decoration: none; }
a:hover { color: orange; }
a img{ opacity: 1;transition: 0.3s;}
a:hover img{opacity: .5;}