JSFiddle - React, Tailwind, and code Playground

HTML

<div id = "header">
        <h1>{Title}</h1>

        {block:Description}
            <p id="description">{Description}</p>
        {/block:Description}
</div>
        <ol id="posts">
            {block:Posts}
                {block:Text}
                    <li class="post text">
                        {block:Title}
                            <h3><a href="{Permalink}">{Title}</a></h3>
                        {/block:Title}

                        {Body}
                    </li>
                {/block:Text}

                {block:Photo}
                    <li class="post photo">
                        <img src="{PhotoURL-500}" alt="{PhotoAlt}"/>

                        {block:Caption}
                            <div class="caption">{Caption}</div>
                        {/block:Caption}
                    </li>
                {/block:Photo}

                {block:Panorama}
                    <li class="post panorama">
                        {LinkOpenTag}
                            <img src="{PhotoURL-Panorama}" alt="{PhotoAlt}"/>
                        {LinkCloseTag}

                        {block:Caption}
                            <div class="caption">{Caption}</div>
                        {/block:Caption}
                    </li>
                {/block:Panorama}

                {block:Photoset}
                    <li class="post photoset">
                        {Photoset-500}

                        {block:Caption}
                            <div class="caption">{Caption}</div>
                        {/block:Caption}
                    </li>
                {/block:Photoset}

                {block:Quote}
                    <li class="post quote">
                        "{Quote}"

                        {block:Source}
                            <div class="source">{Source}</div>
                        {/block:Source}
                    </li>
                {/block:Quote}

                {block:Link}
                   ...

CSS

body { margin: 0px;
    padding: 0px;}
    
    
    
    
    #header {background-color:red;}