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Any URL's added here will be added as <script>s in order, and run before the JavaScript in the editor. You can use the URL of any other Pen and it will include the JavaScript from that Pen.

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Use npm Packages

We can make npm packages available for you to use in your JavaScript. We use webpack to prepare them and make them available to import. We'll also process your JavaScript with Babel.

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HTML Settings

Here you can Sed posuere consectetur est at lobortis. Donec ullamcorper nulla non metus auctor fringilla. Maecenas sed diam eget risus varius blandit sit amet non magna. Donec id elit non mi porta gravida at eget metus. Praesent commodo cursus magna, vel scelerisque nisl consectetur et.

            
              <img src="https://image.freepik.com/icones-gratis/facebook_318-136394.jpg" alt="Logo do facebook" />

<br /><br />

<input type="checkbox" />

<br /><br />

<a href="http://mathmesquita.me/" title="link para o site do mathmesquita">link para meu blog com title contendo mathmesquita</a>

<br /><br />

<a href="https://mathmesquita.me/" title="https-é indicado para o meu blog">link para meu blog com title começando com https</a>

<br /><br />

<div class="galleryBig">
  div começando com classe gallery
</div>

<img class="galleryItem" src="http://www.mrpatel.net/IMAGES/JavaScript.png" />
<div>
  imagem com classe galleryItem e sem atributo alt
</div>

<br /><br />

<a href="http://www.yugioh-card.com/ygo_cms/ygo/all/uploads/Rulebook_v9_pt.pdf" target="_blank">link para um arquivo .pdf</a>

<br /><br />

<img src="https://image.freepik.com/icones-gratis/paisagem-das-montanhas-no-dia-ensolarado_318-74296.jpg" alt="icone com montanhas e um sol" />
            
          
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              *{font-family: Verdana;}

/* seleciona todas as imagems com atributo alt e bota borda azul */
img[alt]{
  border: 4px solid blue;
}

/* seleciona todos os inputs com type checkbox e os aumenta*/
input[type="checkbox"]{
  width: 100px;
  height: 100px;
}

/* seleciona todos os links que tenham a palavra mathmesquita no atributo title e deixa a cor da letra vermelha */
a[title~='mathmesquita']{
  color: red;
}

/* seleciona todos os links que comecem com a palavra 'https', separada da próxima palavra por hífen, no atributo title e deixa com o fundo preto */
a[title|="https"]{
  background: #000;
  color: #fff;
}

/* seleciona todos os elementos do DOM que possuem a classe começando com a string 'gallery' e adiciona uma borda verde*/
[class^="gallery"]{
  border: 3px solid green;
}

/* seleciona todos os links que o atributo href termina com .pdf e deixa a cor vermelha com fundo preto */
a[href$=".pdf"]{
  color: red;
  background: #000;
}

/* seleciona todas as imagems que possuem a palavra montanhas no seu atributo alt e deixa a cor da borda amarela*/
img[alt*="montanhas"]{
  border-color: yellow;
}
            
          
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999px
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