【CSS】placeholderの色を変更する方法
.sample::-webkit-input-placeholder {color: #ff0000;} .sample::-moz-placeholder {color: #ff0000;} .sample:-ms-input-placeholder {color: #ff0000;}
.sample::-webkit-input-placeholder {color: #ff0000;} .sample::-moz-placeholder {color: #ff0000;} .sample:-ms-input-placeholder {color: #ff0000;}