JSFiddle - React, Tailwind, and code Playground

HTML

<div class="center pages clearfix">
    <buuton class="center page-number">1</buuton>
    <buuton class="center page-number">2</buuton>
    <buuton class="center page-number">3</buuton>
</div>

CSS

.center {
    margin-left: auto;
    margin-right: auto;
    text-align:center;
}
.page-number {
    display: inline-block;
    float: none;
    width: 28px;
    height: auto;
    border-radius: 3px;
    background-color: rgba(0, 0, 0, 0.47);
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.34);
    text-shadow: 0 2px 5px rgba(0, 0, 0, .5);
    font-weight: 400;
    line-height: 1.5;
    text-align: center;
    color: rgba(255, 255, 255, 0.47);
}