JSFiddle - React, Tailwind, and code Playground

HTML

<input id="search" class="search-query" placeholder="Placeholder text here" name="" value"">

CSS

::-webkit-input-placeholder {
   color: red;
}

:-moz-placeholder { /* Firefox 18- */
   color: red;  
}

::-moz-placeholder {  /* Firefox 19+ */
   color: red;  
}

:-ms-input-placeholder {  
   color: red;  
}