JSFiddle - React, Tailwind, and code Playground

HTML

<form>
    <input type="text"><!--
    --><input type="submit" value="Найти">
</form>

CSS

input[type="text"], input[type="submit"] {
    font-size: 14px;
    box-sizing: border-box;
    -moz-box-sizing: border-box;
    -webkit-box-sizing: border-box;
    margin: 0;
    height: 30px;
    border: 1px solid grey;
} 
input[type="text"]{
    width: 400px;
    margin-right: 10px;
}
input[type="submit"]{
    background: RGB(205, 233, 245);
    padding: 2px 10px;
}