Reddit提供了在网站上嵌入评论的代码，
例如：
<div class="reddit-embed" data-embed-media="www.redditmedia.com" data-embed-parent="false" data-embed-live="false" data-embed-uuid="24a3e666-f855-4664-8e9e-9d040fef3ca6" data-embed-created="2016-06-29T16:56:02.732Z">
<a href="https://www.reddit.com/r/Showerthoughts/comments/2safxv/we_should_start_keeping_giraffes_a_secret_from/cno7zic">Comment</a> from discussion <a href="https://www.reddit.com/r/Showerthoughts/comments/2safxv/we_should_start_keeping_giraffes_a_secret_from/">We should start keeping giraffes a secret from young children. Imagine discovering giraffes exist when you were like 15. "Woah! Check out that long necked horse!"</a>.
</div>
<script async src="https://www.redditstatic.com/comment-embed.js"></script>
将其粘贴到HTML后，会向内容呈现iframe。
max-width的 iframe属性设置为800px，如何将其更改为其他值或none？
答案 0 :(得分：1)
为了覆盖您无法访问的内联样式，您需要使用!important（这是您需要使用!important的极端情况，否则避免它）
iframe {
max-width: none !important
}<div class="reddit-embed" data-embed-media="www.redditmedia.com" data-embed-parent="false" data-embed-live="false" data-embed-uuid="24a3e666-f855-4664-8e9e-9d040fef3ca6" data-embed-created="2016-06-29T16:56:02.732Z"><a href="https://www.reddit.com/r/Showerthoughts/comments/2safxv/we_should_start_keeping_giraffes_a_secret_from/cno7zic">Comment</a> from discussion <a href="https://www.reddit.com/r/Showerthoughts/comments/2safxv/we_should_start_keeping_giraffes_a_secret_from/">We should start keeping giraffes a secret from young children. Imagine discovering giraffes exist when you were like 15. "Woah! Check out that long necked horse!"</a>.</div>
<script
async src="https://www.redditstatic.com/comment-embed.js"></script>