JSFiddle - React, Tailwind, and code Playground

HTML

<ul>
    <li><a class="new_botton" href="#">Тест</a></li>
    <li><a class="new_botton" href="#">ТестМногомного</a></li>
</ul>

CSS

ul {
    display: inline;
}

ul li {
    list-style-type: none;
    float: left;
    width: 200px;
    text-align: center;
}

.new_botton {
  display: block;
  color: #000000;
  text-decoration: none;
  background-color: #97C3FC;
        padding: 7px 30px;
  border: 1px solid #7E7676;
        -webkit-border-radius: 2px; -moz-border-radius: 2px; -khtml-border-radius: 2px; border-radius: 2px;
        line-height: 24px;
  text-shadow: #A5A5A5 0px 1px 0px; 
}
.new_botton:hover {
background: #8B9DFA;
}