Increasing post width with CSS?

In my forum,
1.I have an ample amount of space to use it for extending the post created by user.It rather looks clumpsy now.I want to utilize the space so that the post looks good,like the homepage is screen friendly using code:

@media screen and (min-width: 1400px) {
  .wrap { max-width: 1500px; }
}

I want the post to be such
eg.

Please suggest how to do this

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Any suggestion will be helpful

not a developer, but i think this may help:

https://meta.discourse.org/t/material-design-for-discourse/28864

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My forum slightly increases post size by:

.topic-body{
  min-width: 65%;
}

You can adjust as needed.

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Consider readability before making it too wide:

http://baymard.com/blog/line-length-readability

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I ended up going 75% because we are a very media heavy site. That’s the great part about Discourse, you can make it whatever you want it to be as long as you make sure it doesn’t conflict with other elements on the page.

I had 75 originally but line breaks in the “reply by new topic” button looked really weird, along with the topic links in the gutter.

I think the team has plans to move the topic links below the posts and clear out the gutter in a later release, but until then just be mindful of the gutter content.

Brilliant! Thank you for this snippet!

I changed my Topic Body as follows (by adding to my CSS):

.topic-body {
  min-width: 80%;
}

After switching to 80%, I noticed that the Topic Timeline scrunches over the Topic Body starting at 1260px, until the time when it naturally disappears for mobile (maybe 800px?)

See Screenshot of problem

So I added this little snippet to my CSS to remove the timeline when the screen size shrinks below 1260px…

@media screen and (max-width: 1260px) {
  .topic-timeline {
    display: none;
  }
}

Works like a charm now!

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I think something like this makes more sense:

@media screen and (min-width: 1260px) {
  .topic-body {
    min-width: 80%;
  }
}
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I haven’t tried this but I suspect you’re correct! My CSS is not always the best approach! I just try a few different approaches until I get the page to do what I want! I’m working on building a new community now. If I end up wanting this same thing then I’ll report back on how it goes! Thanks for chiming in with another (probably better) solution!

Here is also my theme component with this CSS. It’s the recommended way now to avoid editing all themes manually.

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我对该组件进行了重构和扩展。

尺寸现在以 px 为单位指定,而不是 %,以避免混淆,并使其能够在其他位置使用。

.topic-post:not(.d-toc-post) .topic-body {
  width: calc(#{$topic-body-width} + (#{$topic-body-width-padding} * 2) + #{$additional_post_width});
}

此处求和的前两部分取自标准的 Discourse SCSS。

还有一些小的 UI 改进,例如增加了分隔符和管理员操作帖子的尺寸,并且现在在 DiscoTOC 帖子中禁用了该功能,因为在此处表现异常。

此外,我还添加了一个选项来增加编辑器最大宽度,以使预览与帖子宽度匹配。虽然并非完全一致,但标准版本也存在同样的问题。

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非常感谢 @Alex_P。如果您能让它与 Material Design 主题兼容那就太好了,目前的问题是帖子左侧的头像会从侧面跳到帖子本身的上方。