JSFiddle - React, Tailwind, and code Playground

HTML

<div class="form-inline">
    <div class="form-group">
        <div class="col-md-4">
            <label class="radio-inline">
                <input type="checkbox" name="inlineRadioOptionsWeek" id="Checkbox0" value="0">Sunday</label>
            <label class="radio-inline">
                <input type="checkbox" name="inlineRadioOptionsWeek" id="Checkbox1" value="1">Monday</label>
            <label class="radio-inline">
                <input type="checkbox" name="inlineRadioOptionsWeek" id="Checkbox2" value="2">Tuesday</label>
            <label class="radio-inline">
                <input type="checkbox" name="inlineRadioOptionsWeek" id="Checkbox3" value="3">Wednesday</label>
        </div>
        <div class="col-md-4">
            <label class="radio-inline">
                <input type="checkbox" name="inlineRadioOptionsWeek" id="Checkbox4" value="4">Thursday</label>
            <label class="radio-inline">
                <input type="checkbox" name="inlineRadioOptionsWeek" id="Checkbox5" value="5">Friday</label>
            <label class="radio-inline">
                <input type="checkbox" name="inlineRadioOptionsWeek" id="Checkbox6" value="6">Saturday</label>
        </div>
    </div>
</div>