/* 各ベンダープレフィックスが取れた標準版!!(http://caniuse.com/#search=placeholder-shown) */ :placeholder-shown { color: red; } /* Google Chrome, Safari, Opera 15+, Android, iOS */ ::-webkit-input-placeholder { color: red; } /* Firefox 18- */ :-moz-placeholder { color: red; opacity: 1; } /* Firefox 19+ */ ::-moz-placeholder { color: red; opacity: 1; } /* IE 10+ */ :-ms-input-placeholder { color: red; } ::-webkit-inp