JSFiddle - React, Tailwind, and code Playground

HTML

<div class="container">
    <div id="left_bot" class="menu_button"><span class="text_menu_button">Div1</span>
    </div>
</div>

CSS

.container {
    height:200px;
    display:table;
    vertical-align: middle;
    line-height: normal;
    width: 100%;
}
.menu_button {
    text-align: center;
    display: table-cell;
    vertical-align: middle;
    line-height: normal;
    font-size: 48px;
}
#left_top {
    top:0;
    float:left;
    background-color: red;
    margin: 2% 1% 1% 2%;
}