JSFiddle - React, Tailwind, and code Playground

HTML

<input type="text" placeholder="input here" />

CSS

::-webkit-input-placeholder { /* WebKit browsers */
    color:    Red;
}
:-moz-placeholder { /* Mozilla Firefox 4 to 18 */
   color:    Red;
   opacity:  1;
}
::-moz-placeholder { /* Mozilla Firefox 19+ */
   color:   Red;
   opacity:  1;
}
:-ms-input-placeholder { /* Internet Explorer 10+ */
   color:    Red;
}