JSFiddle - React, Tailwind, and code Playground

HTML

<input type="text" list="list" autocomplete="on" name="client" id="clientTxt" style="border-color: red; display: inline-block;">
<input type="text" list="list1" autocomplete="on" name="Installation" id="Installation" style="border-color: red; display: inline-block;">
<input type="submit" value="Create" id="create-submit">

JavaScript

$('#create-submit').click(function (event) {
    event.preventDefault();
    var res = $('input[type=text]').toArray().some(function (el) {

        return $(el).css('border-color') === 'rgb(255, 0, 0)'
    });
    if (res) {
        alert("Please check red input boxes and click create again.");
    } else {
        // do other stuff
    }
});