JSFiddle - React, Tailwind, and code Playground

HTML

<input type="text" class="fade" name="tabTesting"  value="">
<input class='urlCheck' type="text" class="fade" name="website"  value="Current website">

JavaScript

/*function clearMeHttp(formfield) {
    if (formfield.defaultValue == formfield.value) {
        formfield.value = "http://";
    }
};*/

var defaultVal = 'Current website';
$(function() {

    $('.urlCheck').focus(function(e) {
        if ($(this).val() == "http://" || $(this).val() == '' || $(this).val() == defaultVal) {
            $(this).val('http://');
            $(this).select(false);

        }
    });
    
    $('.urlCheck').keyup(function(e) {
        if ($(this).val() == "http://" || $(this).val() == '' || $(this).val() == defaultVal) {
            $(this).val('http://');
        }
    });

    $('.urlCheck').blur(function(e) {
        $(this).val(defaultVal);
    });

});