JSFiddle - React, Tailwind, and code Playground

HTML

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

CSS

input::-webkit-input-placeholder, textarea::-webkit-input-placeholder { 
    color:    #666;
}
input:-moz-placeholder, textarea:-moz-placeholder { 
    background-color:    #eeee;
}
input::-moz-placeholder, textarea::-moz-placeholder { 
    background-color:    #eeee;
}
input:-ms-input-placeholder, textarea:-ms-input-placeholder { 
    color:    #666;
}