JSFiddle - React, Tailwind, and code Playground

HTML

<form>
  <input class="search-window" type="text"> <input class="button" type="button" value="Найти">
</form>

CSS

.search-window {
  width: auto;
  height: 30px;
  box-sizing: inherit;
  margin-right: 10px;
}
.button {
  height: 31px;
  box-sizing: inherit;
  padding: 0 10px;
  font-size: 14px;
}