JSFiddle - React, Tailwind, and code Playground

HTML

<div>
    <input class="filterBox" type="text" placeholder="Filter"/>
</div>

CSS

.filterBox {
    height: 24.000px;
    width: 200.000px;
    display: inline;
    vertical-align: middle;
    background-color: rgb(238, 238, 238);
}

.filterBox::-webkit-input-placeholder, .filterBox::-moz-placeholder, .filterBox::-ms-input-placeholder
{ 
    font-style: italic;
}