JSFiddle - React, Tailwind, and code Playground

HTML

<input type="text" name="count" id="count" data-theme="b" />
<input type="text" name="count1" id="count1" value="1"  data-theme="b" />
<input type="text" name="count1" id="count1" value="1"  data-theme="b" />
<input type="text" name="count1" id="count1" value="1"  data-theme="b" />

<input type="radio" name="radio" value="Milk"> Milk

<input type="text" name="count1" id="count1" value="1"  data-theme="b" />
<input type="submit" name="submit" id="submit"  disabled="true"/>

CSS

.first{
    cursor: pointer;
    float: left;
    padding: 0.8em 0;
    border: 1px solid transparent;
    border-bottom: 1px solid #666;
    text-align: left;
    z-index: 0;
    width:80%;
}


.first:hover {
    background-color: #3F464B;
}

JavaScript

$(document).ready(function(){
 
    $("input[name=count]").on('change', function()
                                {
                                    $("input[name=submit]").removeAttr("disabled").focus();      
      
    });
    
    });