Add flag image to select option

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Good day! Im a newbie. Im trying to add image in the option tag in the select. but when i run the code. It doesnt show the image. can someone help me? thank you

This

It's Difficult to Customize `<select>` & `<option>` Tags

<select> and <option> tags are difficult to customize and anything that holds true for one browser is never true for the rest of them.

Solution

Forget about customizing <select>, create a pseudo-<select>^✱ using <details> and <summary>

`<select>` `<details>` & `<summary>`

Forget about customizing <option>, create a pseudo-<option>^✱ using <input type='radio'> and <label>

`<option>` `<input type='radio'>` & `<label>`

^✱The pseudo-<select> and pseudo-<option> tags will be close in appearance and behavior to that of the standard <select> and <option> tags. More importantly, it can store and process a value, and it can be registered to the change event.

Demo

Details are commented in demo

/*| For Demonstration Purposes
This is a test to prove that this pseudo-<select> functions like 
a real <select> by logging the value of the selected pseudo-
<option> to the console.
*/

var xC = document.forms.container;
var xE = xC.elements;
var vR = xE.rad;

xC.onchange = function() {
  console.log(vR.value);
}

html,
body {
  font: 400 small-caps 16px/1.25 Arial;
}

fieldset {
  width: fit-content;
  padding: 0;
}

legend {
  font-size: 1rem
}

details {
  width: 150px;
  cursor: pointer;
  margin: 0 4px -5px 0;
  padding: 0 0 0 10px;
}

summary {
  position: relative;
  width: 96%;
  outline: 0.5px ridge grey;
}


/*
Hides <detail>'s default arrow
*/

details summary::-webkit-details-marker {
  visibility: hidden;
  position: absolute;
  z-index: -1;
}


/*| Pseudo-<option>
All pseudo-<option> are initially hidden and 
<label class='opt'> are the only tags that will show/hide, 
the next comment explains how.
*/

.rad {
  display: none
}

.opt {
  display: none;
  margin: 0 0 2px 0;
  cursor: pointer;
  font-size: 0.9rem;
  box-shadow: -2px -2px 11px rgba(0, 0, 0, 0.3) inset;
}


/*| Two Conditions
1. If <details open='true'> all <label class='opt'> are visible.
=============================================
2. if <input class='rad' type='radio' checked> then the 
   <label class='opt'> that proceeds the radio button is visible.
*/

[open] .opt,
.rad:checked+.opt {
  display: block;
}

/*| For Demonstration Purposes
This ruleset changes how the console is displayed.
*/

.as-console-wrapper {
  width: 50%;
  min-height: 100%;
  margin-left: 50%;
  font-variant: normal;
}

.as-console-row.as-console-row::after {
  content: '';
  padding: 0;
  margin: 0;
  border: 0;
  width: 0;
}

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

<head>
  <meta charset="UTF-8">
  <title>Custom select box Jquery Plugin by VJ</title>
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/normalize/5.0.0/normalize.min.css">

<!--| Flag Icons
This stylesheet provides the flag icons. 
For details, go to: 
https://afeld.github.io/emoji-css/
-->

  <link href="https://afeld.github.io/emoji-css/emoji.css" rel="stylesheet" />
</head>

<body>
 <form id="container">
  <fieldset>
    <legend>Country</legend>

<!--| Pseudo-<select> 
<details> provides the dropdown behavior and
<summary> contains the pseudo-<option>
-->
    <details>
     <summary>

<!--| 4 Pseudo-<option> 
Each <label> and <input type='radio'> pair are
synced to each other by matching the values of
<label for="ID"> and <input id="ID">. 
-->

<!--| Trigger and State
When <label> is clicked ... <input type='radio'>
is checked. This simple "cause and effect" can
be leveraged into a system of states (ie off/on). 
For details, review the CSS. 
-->

  <input id='X' type='radio' class='rad' name='rad' value="" checked>
  <label class='opt' for='X'>
    &nbsp;&nbsp;╍╍╍╍╍╍╍╍╍
  </label>

  <input id='US' type='radio' class='rad' name='rad' value="United States">
  <label class='opt' for='US'>
    &nbsp;&nbsp;
    <i class='em em-us'></i> 
    United States
  </label>

  <input id='GB' type='radio' class='rad' name='rad' value="Great Britain">
  <label class='opt' for='GB'>
    &nbsp;&nbsp;
    <i class='em em-gb'></i> 
    Great Britain
  </label>

  <input id='IN' type='radio' class='rad' name='rad' value="India">
  <label class='opt' for='IN'>
    &nbsp;&nbsp;
    <i class='em em-flag-in'></i>
    India
  </label>

  <input id='NP' type='radio' class='rad' name='rad' value="Nepal">
  <label class='opt' for='NP'>
    &nbsp;&nbsp;
    <i class='em em-flag-np'></i>
    Nepal
  </label>

  </summary>
</details>
</fieldset>
</form>

</body>
</html>

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Add flag image to select option

It's Difficult to Customize <select> & <option> Tags

Solution

<select> <details> & <summary>

<option> <input type='radio'> & <label>

Demo

It's Difficult to Customize `<select>` & `<option>` Tags

`<select>` `<details>` & `<summary>`

`<option>` `<input type='radio'>` & `<label>`