#app{font-family:Avenir,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-align:center;color:#2c3e50}.header{font-family:Lato,Noto Sans JP,游ゴシック Medium,游ゴシック体,Yu Gothic Medium,YuGothic,ヒラギノ角ゴ ProN,Hiragino Kaku Gothic ProN,メイリオ,Meiryo,ＭＳ Ｐゴシック,MS PGothic,sans-serif;font-weight:900;text-align:left;font-size:12px}.header a{text-decoration:none;color:#777;font-weight:600}.footer{font-size:12px}.footer a{text-decoration:none;color:#777;font-weight:600}ul{margin:0;padding-left:0;display:-webkit-box;display:-ms-flexbox;display:flex;margin:10px auto}li,ul{width:100%}li{list-style:none;font-family:Lato,Noto Sans JP,游ゴシック Medium,游ゴシック体,Yu Gothic Medium,YuGothic,ヒラギノ角ゴ ProN,Hiragino Kaku Gothic ProN,メイリオ,Meiryo,ＭＳ Ｐゴシック,MS PGothic,sans-serif;margin:0 5px;color:#fff;line-height:75vh;font-size:2rem}.question{background:#00f}.correct{background:green}.wrong{background:red}