JSFiddle - React, Tailwind, and code Playground

HTML

<input style="width: 20px" data-ng-model="row.number" type="text" />
<span style="width: 20px">-</span>

CSS

input, span {
        display: table-cell;
        vertical-align: middle;
    }
    input {
        outline: none;
        padding: 0px;
        margin: 0px;
    }
    body {
        display: table;
    }