差分

.atbA { border: 1px solid #f66 ; margin: 0 .2em;}.atbB { border: 1px solid #39f ; margin: 0 .2em;}.atbC { border: 1px solid #3c0 ; margin: 0 .2em;}.atbD { border: 1px solid #96f ; margin: 0 .2em;}.atbE { border: 1px solid #fc0 ; margin: 0 .2em;}.atbF { border: 1px solid #0cf ; margin: 0 .2em;}.atbG { border: 1px solid #960 ; margin: 0 .2em;}.atbH { border: 1px solid #f69 ; margin: 0 .2em;}