Tamam bir şeyler yapıp çözdüm.
Bu şekilde çözebilirsin.
<html>
<meta charset="utf-8">
<div style="display: flex;" class="display">
<h3 style="padding-left: 40px; font-family: var(--font2);">Ön Ek</h3>
<div class="form-group row" style="padding-left: 40px;">
<div class="col-sm-10">
<input style="width: 200px; height: 40px;" type="text" name="prefix" aria-describedby="helper-text-explanation" class="bg-gray-50 border border-gray-300 text-gray-900 text-sm rounded-lg focus:ring-blue-500 focus:border-blue-500 block w-full p-2.5 dark:bg-gray-700 dark:border-gray-600 dark:placeholder-gray-400 dark:text-white dark:focus:ring-blue-500 dark:focus:border-blue-500" placeholder="<%= settings.prefix %>" value="<%= settings.prefix %>">
</div>
</div><h3 style="font-family: var(--font2); padding-left: 40px">Dil Seçimi <span class="bg-gray-100 text-gray-800 text-xs font-semibold mr-2 px-2.5 py-0.5 rounded dark:bg-gray-700 dark:text-gray-300">Yakında</span></h3>
<div class="form-group row" style="padding-left: 40px">
<select style="width: 200px; height: 40px;" disabled id="countries_disabled" class="bg-gray-50 border border-gray-300 text-gray-900 text-sm rounded-lg focus:ring-blue-500 focus:border-blue-500 block w-full p-2.5 dark:bg-gray-700 dark:border-gray-600 dark:placeholder-gray-400 dark:text-white dark:focus:ring-blue-500 dark:focus:border-blue-500">
<option selected>Türkçe</option>
</select>
</div>
</div>