JSFiddle - React, Tailwind, and code Playground

HTML

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <link rel="stylesheet" href="assets/css/style.css">
    <link rel="preconnect" href="https://fonts.googleapis.com">
    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
    <link href="https://fonts.googleapis.com/css2?family=Open+Sans:ital,wght@0,300;0,400;0,500;0,600;0,700;1,300;1,400;1,500;1,600;1,700&display=swap" rel="stylesheet">
<title>Loremsum</title>
</head>

<body>
    <header>
        <div class="main_container">
            <div class="shipping_container"><span class="container_1">Free Shipping on Orders of Rs. 2587 - <span style="color: yellow; font-weight: 800">SHIP39</span></span></div>

           <div class="button_container"><a class="login_button" href="#" style="color:aliceblue; text-decoration:none">Login / Register</a></div>
           </div>
    </header>

        <div class="main_container">
            <div class="logo_name_container"><img class="logo" src="https://i.ibb.co/vJpzTFr/Layer-2.png" alt="Main Logo"/>
            <span class="logo_name_1">LOREMSUM</span>
            <span class="logo_name_2">Dummy text the printing</span>
            </div>
        </div>


        <div class="background_container">
            <div class="main_container">
                <div class="filter_container">
                    <select name="select country" class="country">
                        <option value="1">Select country</option>
                        <option value="2">Ukraine</option>
                        <option value="3">USA</option>
                    </select>
                    <select name="search_filter" class="searching"> option>
                        <option value="1">Search filter</option>
                        <option value="2">Black</option>
                        <option value="3">White</option>
                    </select>
                    <input...

CSS

body {
    margin: 0;
    width: 100%;
    height: auto;
}
header {
    background-color: rgb(0, 146, 63);
    box-shadow: 0px 5px 15px 0px rgba(0, 146, 63, 0.5);
    width: 100%;
    height: 41px;
}
.main_container {
    width: 1003px;
    margin: 0px auto;
}
/*.container_1::before {
    content:"";
    display:inline-block;
    border-radius: 50%;
    background-color: white;
    width: 6px;
    height: 6px;
    position: relative;
    right: 5px;
    bottom: 3px;
}*/
.shipping_container {
    width: 50%;
    height: 41px;
    display: inline-flex; /*added this*/
    align-items: center;
}
.container_1 {
    color:aliceblue;
    font-size: 14px;
    font-family: "Open sans";
    padding-left: 25px;
    align-items: center;
    display: flex;

}
.container_1::before {
    content: '';
    width: 6px;
    border-radius: 50%;
    height: 6px;
    background: white;
}
.button_container {
    display: inline-block;
    height: 41px;
    float:right;
    margin-right: 10%;
}
.login_button {
    display: block;
    height: 41px;
    line-height: 41px;
    border-left: 1px solid;
    border-right: 1px solid;
    border-color: #03883c;
    box-shadow: 0px 0px 5px 0px rgba(2, 49, 22, 0.1);
}
.login_button:hover {
    background-color: #258b50;
}
.logo_name_container {
    height: 100px;
    width: auto;
}
.logo {
    width: 59px;
    height: 69px;
    margin-top: 29px;
    margin-left: 10px;
    margin-right: 15px;
}
.logo_name_1 {
    position: relative;
    bottom: 32px;
    color: #00923f;
    font-family: "Open sans";
    font-weight: 400;
    height: auto;
    font-size: 40px;
}
.logo_name_2 {
    position: relative;
    left: -225px;
    bottom: 6px;
    font-size: 20px;
    color: rgb(34, 34, 34);
    font-family: "Open sans";
    font-weight: 400;
    width: auto;
}
.background_container {
    background-color: #f1f1f1;
    width: 100%;
}
.filter_container {
    height: 64px;
    margin-top: 28px;
    display: flex;
}
.country {
    margin-left: 5px;
   ...