JSFiddle - React, Tailwind, and code Playground

HTML

<div class="checkbox_container row3">
     <label class="checkbox"><input type="checkbox" name="..."> some text</label>
     <label class="checkbox"><input type="checkbox" name="..."> some text</label>
    <label class="checkbox"><input type="checkbox" name="..."> some text</label>
    <label class="checkbox"><input type="checkbox" name="..."> some text</label>
    <label class="checkbox"><input type="checkbox" name="..."> some text</label>
    <label class="checkbox"><input type="checkbox" name="..."> some text</label>
    <label class="checkbox"><input type="checkbox" name="..."> some text</label>
    <label class="checkbox"><input type="checkbox" name="..."> some text</label>
    <label class="checkbox"><input type="checkbox" name="..."> some text</label>
    <label class="checkbox"><input type="checkbox" name="..."> some text</label>
    <label class="checkbox"><input type="checkbox" name="..."> some text</label>
    <label class="checkbox"><input type="checkbox" name="..."> some text</label>
    <label class="checkbox"><input type="checkbox" name="..."> some text</label>
    <label class="checkbox"><input type="checkbox" name="..."> some text</label>
    <label class="checkbox"><input type="checkbox" name="..."> some text</label>
    <label class="checkbox"><input type="checkbox" name="..."> some text</label>
    <label class="checkbox"><input type="checkbox" name="..."> some text</label>
    <label class="checkbox"><input type="checkbox" name="..."> some text</label>
    <label class="checkbox"><input type="checkbox" name="..."> some text</label>
    <label class="checkbox"><input type="checkbox" name="..."> some text</label>
    <label class="checkbox"><input type="checkbox" name="..."> some text</label>
    <label class="checkbox"><input type="checkbox" name="..."> some text</label>
    <label class="checkbox"><input type="checkbox" name="..."> some text</label>

      <span class="last_element"></span>
</div>

CSS

.checkbox_container {
   text-align:justify;
}
label.checkbox {
    display:inline-block;
    min-width:100px;
}
.row2 label.checkbox {
    width:40%;
}
.row3 label.checkbox {
    width:25%;
}
span.last_element{
    display:inline-block;
    width:80%;
    height:1px;
    line-height:px;
    overflow:none;
}