Can't render youtube embed iframe with rails 6 actiontext - ruby-on-rails
I have setup a custom embed model so I can add things like instagram or youtube embeds to actiontext content on my site. It's working correctly for instagram embeds, but not youtube.
As a reference, the youtube embed code I want to display is:
<iframe width="560" height="315" src="https://www.youtube.com/embed/F0kgw25zjpc" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
models/recipe.rb:
class Recipe < ApplicationRecord
has_rich_text :body
...
end
models/embed.rb:
class Embed < ApplicationRecord
include ActionText::Attachable
validates :content, presence: true # content is text in db
end
embeds/_embed.html.erb:
<div class="text-center">
<div class="d-inline-block h-100">
<%= embed.content.html_safe %>
</div>
</div>
views/recipes.show.html.erb (where I'm trying to actually display the content - #recipe.body is the actiontext):
<h1><%= #recipe.title %></h1>
<%= #recipe.body %>
I can see the youtube embed when editing the content (it shows in the trix editor), but when viewing the rendered content, nothing - I can see the surrounding divs so I know it's being added to the page, but no iFrame.
It's annoying because an instagram embed works fine - for reference the instagram embed looks something like:
<blockquote class="instagram-media" data-instgrm-captioned data-instgrm-permalink="https://www.instagram.com/p/B_AHNeYgHfr/?utm_source=ig_embed&utm_campaign=loading" data-instgrm-version="12" style=" background:#FFF; border:0; border-radius:3px; box-shadow:0 0 1px 0 rgba(0,0,0,0.5),0 1px 10px 0 rgba(0,0,0,0.15); margin: 1px; max-width:540px; min-width:326px; padding:0; width:99.375%; width:-webkit-calc(100% - 2px); width:calc(100% - 2px);"><div style="padding:16px;"> <div style=" display: flex; flex-direction: row; align-items: center;"> <div style="background-color: #F4F4F4; border-radius: 50%; flex-grow: 0; height: 40px; margin-right: 14px; width: 40px;"></div> <div style="display: flex; flex-direction: column; flex-grow: 1; justify-content: center;"> <div style=" background-color: #F4F4F4; border-radius: 4px; flex-grow: 0; height: 14px; margin-bottom: 6px; width: 100px;"></div> <div style=" background-color: #F4F4F4; border-radius: 4px; flex-grow: 0; height: 14px; width: 60px;"></div></div></div><div style="padding: 19% 0;"></div> <div style="display:block; height:50px; margin:0 auto 12px; width:50px;"><svg width="50px" height="50px" viewBox="0 0 60 60" version="1.1" xmlns="https://www.w3.org/2000/svg" xmlns:xlink="https://www.w3.org/1999/xlink"><g stroke="none" stroke-width="1" fill="none" fill-rule="evenodd"><g transform="translate(-511.000000, -20.000000)" fill="#000000"><g><path d="M556.869,30.41 C554.814,30.41 553.148,32.076 553.148,34.131 C553.148,36.186 554.814,37.852 556.869,37.852 C558.924,37.852 560.59,36.186 560.59,34.131 C560.59,32.076 558.924,30.41 556.869,30.41 M541,60.657 C535.114,60.657 530.342,55.887 530.342,50 C530.342,44.114 535.114,39.342 541,39.342 C546.887,39.342 551.658,44.114 551.658,50 C551.658,55.887 546.887,60.657 541,60.657 M541,33.886 C532.1,33.886 524.886,41.1 524.886,50 C524.886,58.899 532.1,66.113 541,66.113 C549.9,66.113 557.115,58.899 557.115,50 C557.115,41.1 549.9,33.886 541,33.886 M565.378,62.101 C565.244,65.022 564.756,66.606 564.346,67.663 C563.803,69.06 563.154,70.057 562.106,71.106 C561.058,72.155 560.06,72.803 558.662,73.347 C557.607,73.757 556.021,74.244 553.102,74.378 C549.944,74.521 548.997,74.552 541,74.552 C533.003,74.552 532.056,74.521 528.898,74.378 C525.979,74.244 524.393,73.757 523.338,73.347 C521.94,72.803 520.942,72.155 519.894,71.106 C518.846,70.057 518.197,69.06 517.654,67.663 C517.244,66.606 516.755,65.022 516.623,62.101 C516.479,58.943 516.448,57.996 516.448,50 C516.448,42.003 516.479,41.056 516.623,37.899 C516.755,34.978 517.244,33.391 517.654,32.338 C518.197,30.938 518.846,29.942 519.894,28.894 C520.942,27.846 521.94,27.196 523.338,26.654 C524.393,26.244 525.979,25.756 528.898,25.623 C532.057,25.479 533.004,25.448 541,25.448 C548.997,25.448 549.943,25.479 553.102,25.623 C556.021,25.756 557.607,26.244 558.662,26.654 C560.06,27.196 561.058,27.846 562.106,28.894 C563.154,29.942 563.803,30.938 564.346,32.338 C564.756,33.391 565.244,34.978 565.378,37.899 C565.522,41.056 565.552,42.003 565.552,50 C565.552,57.996 565.522,58.943 565.378,62.101 M570.82,37.631 C570.674,34.438 570.167,32.258 569.425,30.349 C568.659,28.377 567.633,26.702 565.965,25.035 C564.297,23.368 562.623,22.342 560.652,21.575 C558.743,20.834 556.562,20.326 553.369,20.18 C550.169,20.033 549.148,20 541,20 C532.853,20 531.831,20.033 528.631,20.18 C525.438,20.326 523.257,20.834 521.349,21.575 C519.376,22.342 517.703,23.368 516.035,25.035 C514.368,26.702 513.342,28.377 512.574,30.349 C511.834,32.258 511.326,34.438 511.181,37.631 C511.035,40.831 511,41.851 511,50 C511,58.147 511.035,59.17 511.181,62.369 C511.326,65.562 511.834,67.743 512.574,69.651 C513.342,71.625 514.368,73.296 516.035,74.965 C517.703,76.634 519.376,77.658 521.349,78.425 C523.257,79.167 525.438,79.673 528.631,79.82 C531.831,79.965 532.853,80.001 541,80.001 C549.148,80.001 550.169,79.965 553.369,79.82 C556.562,79.673 558.743,79.167 560.652,78.425 C562.623,77.658 564.297,76.634 565.965,74.965 C567.633,73.296 568.659,71.625 569.425,69.651 C570.167,67.743 570.674,65.562 570.82,62.369 C570.966,59.17 571,58.147 571,50 C571,41.851 570.966,40.831 570.82,37.631"></path></g></g></g></svg></div><div style="padding-top: 8px;"> <div style=" color:#3897f0; font-family:Arial,sans-serif; font-size:14px; font-style:normal; font-weight:550; line-height:18px;"> View this post on Instagram</div></div><div style="padding: 12.5% 0;"></div> <div style="display: flex; flex-direction: row; margin-bottom: 14px; align-items: center;"><div> <div style="background-color: #F4F4F4; border-radius: 50%; height: 12.5px; width: 12.5px; transform: translateX(0px) translateY(7px);"></div> <div style="background-color: #F4F4F4; height: 12.5px; transform: rotate(-45deg) translateX(3px) translateY(1px); width: 12.5px; flex-grow: 0; margin-right: 14px; margin-left: 2px;"></div> <div style="background-color: #F4F4F4; border-radius: 50%; height: 12.5px; width: 12.5px; transform: translateX(9px) translateY(-18px);"></div></div><div style="margin-left: 8px;"> <div style=" background-color: #F4F4F4; border-radius: 50%; flex-grow: 0; height: 20px; width: 20px;"></div> <div style=" width: 0; height: 0; border-top: 2px solid transparent; border-left: 6px solid #f4f4f4; border-bottom: 2px solid transparent; transform: translateX(16px) translateY(-4px) rotate(30deg)"></div></div><div style="margin-left: auto;"> <div style=" width: 0px; border-top: 8px solid #F4F4F4; border-right: 8px solid transparent; transform: translateY(16px);"></div> <div style=" background-color: #F4F4F4; flex-grow: 0; height: 12px; width: 16px; transform: translateY(-4px);"></div> <div style=" width: 0; height: 0; border-top: 8px solid #F4F4F4; border-left: 8px solid transparent; transform: translateY(-4px) translateX(8px);"></div></div></div> <p style=" margin:8px 0 0 0; padding:0 4px;"> Coating a delicious lamb rack in mustard 🤤</p> <p style=" color:#c9c8cd; font-family:Arial,sans-serif; font-size:14px; line-height:17px; margin-bottom:0; margin-top:8px; overflow:hidden; padding:8px 0 7px; text-align:center; text-overflow:ellipsis; white-space:nowrap;">A post shared by Kirkham Cookbook (#kirkhamcookbook) on <time style=" font-family:Arial,sans-serif; font-size:14px; line-height:17px;" datetime="2020-04-15T12:37:36+00:00">Apr 15, 2020 at 5:37am PDT</time></p></div></blockquote> <script async src="//www.instagram.com/embed.js"></script>
I have a feeling this is iframe related, as changing embeds/_embed.html.erb to:
<iframe width="560" height="315" src="https://www.youtube.com/embed/F0kgw25zjpc" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
renders nothing at all.
Ok, so I figured this one out. As suspected, it's an iframe (or more specifically a non-whitelisted tag) issue with Rails sanitization, not specifically ActionText rendering.
The solution is to append iframe to whitelisted tags like so:
config/initializers/html_sanitation.rb:
Rails::Html::WhiteListSanitizer.allowed_tags << "iframe"
In config/application.rb, add the following:
class Application < Rails::Application
# ...
config.to_prepare do
ActionText::ContentHelper.allowed_tags << 'iframe'
end
end
Related
MSO Conditionals and ERB Tags
I'm trying to embedded ruby content in a MSO conditional in a mailer.html.erb in a rails server. Because dosen't seem to work since href renders "www.example.com/edit/<%= #user[:id] %>/<%= #user[:reset_digest] %>" for mso. <!--[if mso]> <table width="100%" cellpadding="0" cellspacing="0" border="0" style="border-spacing: 0; border-collapse: collapse; mso-table-lspace:0pt; mso-table-rspace:0pt;"> <tr> <td style="padding-right: 10px; padding-left: 10px; padding-top:10px; padding-bottom:10px;" align="center"> <v:roundrect xmlns:v="urn:schemas-microsoft-com:vml" xmlns:w="urn:schemas-microsoft-com:office:word" href="https://www.example.com/doctores/edit/<%= #user[:id] %>/<%= #user[:reset_digest] %>" style="height:42px; v-text-anchor:middle; width:170px;" arcsize="15%" strokecolor="#3AAEE0" fillcolor="#3AAEE0"> <w:anchorlock/> <center style="color:#ffffff; font-family:'Helvetica Neue', Helvetica, Arial, sans-serif; font-size:16px;"> <![endif]--> <a href="https://www.example.com/doctores/edit/<%= #user[:id] %>/<%= #user[:reset_digest] %>" target="_blank" style="display: inline-block;text-decoration: none;-webkit-text-size-adjust: none;text-align: center;color: #ffffff; background-color: #3AAEE0; border-radius: 6px; -webkit-border-radius: 6px; -moz-border-radius: 6px; max-width: 150px; width: 110px; width: auto; border-top: 0px solid transparent; border-right: 0px solid transparent; border-bottom: 0px solid transparent; border-left: 0px solid transparent; padding-top: 5px; padding-right: 20px; padding-bottom: 5px; padding-left: 20px; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;mso-border-alt: none"> <span style="font-size:12px;line-height:24px;"><span style="font-size: 16px; line-height: 32px;" data-mce-style="font-size: 16px;">Corregir Datos</span></span> </a> Thanks
The only solution I have found is to string concat your ruby vars into the if block and output the whole mso conditional, something like so in your case: <%== '<!--[if mso]> <table width="100%" ...> <tr> <td style="..."> <v:roundrect ... href="https://www.example.com/doctores/edit/' + #user[:id] + '/' + #user[:reset_digest] + '" style="..." ...> <w:anchorlock/> <center style="..."> <![endif]-->' %> Notice the use of the <%== 'raw' erb tag, I had inconsistent results with the regular escaped <%= tag. Is frankly an ugly, hacky solution but then its not like using mso tags for emails is pretty ;)
html email signature to resize for iphone/smaller screenn
I'm designing a basic HTML signature. I do the HTML code in Dreamweaver (Mac), open to preview in firefox/safari and select all and drag the HTML into apple mails signature composer. It works well, and the signature looks good on desktop and ipad but doesen't work on iphone/smaller screen.
The signature looks like this (i've blacked out personal details):
The problem is on the smaller iphone, some of the text stays left of the picture, and some does not fit and ends up under the photo but with a margin. What would be ideal is if on iphone, I could config so all text and icons display below the main picture all the way left with no margin. Is it possible to set a different set CSS styles for iphone in a HTML email? or is there another way I can make my code more responsive?
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Untitled Document</title>
</head>
<body>
<div id="sig-container" style="margin-top: 15px;padding-top: 6px; border-top: 1px dashed #ddd;">
<div style="float: left; margin: 2px 10px 5px 0px; border-right: 2px solid #000; padding-right: 30px; display: block;" id="photoWrapper"> <img src="http://websiteremoved/emailsm.jpg" id="sigPhoto" height="300px" width="200px"> </div>
<div style="margin-top:0px; margin-left: 74px;" id="sigDetailsWrapper"> <p style="font-family: Arial, sans-serif; font-size: 20px; line-height: 10px; color: #333; margin-top:10; margin-left:0; padding-left:0;"> <strong><span id="sigName">Name Removed</span></strong></span> <br>
<span id="sigTitle"><p style="font-family: Arial, sans-serif; font-size: 16px; line-height: 0px; color: #333; margin-top:0; margin-bottom:20px;margin-left:0; padding-left:0;">Title Removed | Title Removed</span><br>
<div><p style="font-family: Arial, sans-serif; font-size: 16px; line-height: 20px; color: #333;">
<span> email: emailremoved </span> <br>
<span> mobile: mobileremoved </span><br>
<span> web: websiteremoved</span> <br>
<span> facebook: facebook.com/facebookremoved</span> <br> <br>
<img src="http://websiteremoved/phone.jpg" height="62px" width="62px" style="color:#428BCA; text-decoration: none;" rel="nofollow">
<img src="http://websiteremoved/email.jpg" height="62px" width="62px" style="color:#428BCA; text-decoration: none;" rel="nofollow">
<img src="http://websiteremoved/web.jpg" height="62px" width="62px" style="color:#428BCA; text-decoration: none;" rel="nofollow"> </p> </div>
<div class="sep about" style="box-sizing: border-box;
background-attachment: scroll; height: 120px; position: relative;
-webkit-background-size: cover; background-size: cover;
background-image:
url('http://websiteremoved/about-sep.jpg');
z-index: 1; background-position: 50% -48.5px; background-repeat:
no-repeat no-repeat; "></div>
</div>
</body>
</html>
Yes, you can target iPhones using their retina screens. The media query should be "#media all and (min-device-pixel-ratio : 1.5)" For example...
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Untitled Document</title>
<style type="text/css">
#media all and (min-device-pixel-ratio : 1.5) {
#sigDetailsWrapper {margin-left: 0px !important;}
}
</style>
</head>
<body>
<div id="sig-container" style="margin-top: 15px;padding-top: 6px; border-top: 1px dashed #ddd;">
<div style="float: left; margin: 2px 10px 5px 0px; border-right: 2px solid #000; padding-right: 30px; display: block;" id="photoWrapper"> <img src="http://websiteremoved/emailsm.jpg" id="sigPhoto" height="300px" width="200px"> </div>
<div style="margin-top:0px; margin-left: 74px;" id="sigDetailsWrapper"> <p style="font-family: Arial, sans-serif; font-size: 20px; line-height: 10px; color: #333; margin-top:10; margin-left:0; padding-left:0;"> <strong><span id="sigName">Name Removed</span></strong></span> <br>
<span id="sigTitle"><p style="font-family: Arial, sans-serif; font-size: 16px; line-height: 0px; color: #333; margin-top:0; margin-bottom:20px;margin-left:0; padding-left:0;">Title Removed | Title Removed</span><br>
<div><p style="font-family: Arial, sans-serif; font-size: 16px; line-height: 20px; color: #333;">
<span> email: emailremoved </span> <br>
<span> mobile: mobileremoved </span><br>
<span> web: websiteremoved</span> <br>
<span> facebook: facebook.com/facebookremoved</span> <br> <br>
<img src="http://websiteremoved/phone.jpg" height="62px" width="62px" style="color:#428BCA; text-decoration: none;" rel="nofollow">
<img src="http://websiteremoved/email.jpg" height="62px" width="62px" style="color:#428BCA; text-decoration: none;" rel="nofollow">
<img src="http://websiteremoved/web.jpg" height="62px" width="62px" style="color:#428BCA; text-decoration: none;" rel="nofollow"> </p> </div>
<div class="sep about" style="box-sizing: border-box;
background-attachment: scroll; height: 120px; position: relative;
-webkit-background-size: cover; background-size: cover;
background-image:
url('http://websiteremoved/about-sep.jpg');
z-index: 1; background-position: 50% -48.5px; background-repeat:
no-repeat no-repeat; "></div>
</div>
</body>
</html>
You might want to recode this to use tables, though, as divs can often get messed up in Outlook, as well as Floats.
Unable to display right tick mark in checkbox in tablets and iPad
I have following code, it displays check mark ticked on desktop. But doesn't work on iPad and tablets. Functionality is working but right mark is not shown.
<div class="col-xs-2 col-sm-2 col-md-2 col-lg-2 borderAtRight"
<!-- Dropdown and Menu -->
<div class="btn-group topFilterCtrl filterDropdn" dropdown
dropdown-append-to-body
id="ddlStatus">
<div id="btn-append-to-body" type="button"
class="btn btn-primary panelTextFont14 noBorder"
dropdown-toggle>
Status<span class="caret caretSpan"></span>
</div>
<ul class="dropdown-menu dropDownLabel" role="menu"
aria-labelledby="btn-append-to-body"
ng-show="!vm.showthis">
<div class="customScroll">
<li role="menuitem" class="changeColorOnHover"
ng-repeat="optionThis in vm.List track by $index"
ng-show="list.value != null">
<a href="#">
<div class="checkbox" id="{}index}"
ng-show="this.value != null"
ng-click="vm.applyFilterForResultCount()"
ng-change="vm.getCount(this)"
ng-model="this.flag">
<label>
<input type="checkbox"
ng-click="vm.clickStatusCheckBox(this);$event.stopPropagation();"
ng-show="this.value != null"/>
{{this.value}}
</label>
</div>
</a>
</li>
</div>
<!--Clear div-->
<li role="menuitem" class="btn btn-default buttonli"
ng-click="vm.clearAll()">
<a href="#">
<p>
<span class="clearAllBtn">Clear</span>
<span class="dropDownBtnItem"> – All </span>
</p>
</a>
</li>
</ul>
</div>
</div>
.topFilterCtrl{
text-align: left;
vertical-align: middle;
padding-top: 8%;
padding-bottom: 0%;
border-radius: 0;
margin-top: 0%;
box-shadow: none;
outline: none;
border:none;
width:100%;
}
portrait:
div.borderAtRight .filterDropdn{
padding-top:14%;
}
.filterDropdn{
padding-top: 10%;
height: 50px;
max-height: 50px;
overflow: hidden;
}
.noBorder{
text-align: left;
width:#full-width;
box-shadow: none;
outline: none;
min-width: 80%;
padding: 0;
height: auto;
min-height: 36px;
border-top-color: none;
border-top-style: none;
border-top-width: none;
border-right-color: none;
border-right-style: none;
border-right-width: none;
border-bottom-color: none;
border-bottom-style: none;
border-bottom-width: none;
border-left-color: none;
border-left-style: none;
border-left-width: none;
}
.dropDownLabel{
margin:0 0 0 -16px;
}
.customScroll{
height: auto;
overflow-x: hidden;
max-height:360px;
}
.customScroll>li>a,
.customScroll>li>a:hover,
.customScroll>li>a:active,
.customScroll>li>a:focus {
display: block;
padding: 1px 22px;
clear: both;
white-space: nowrap;
text-decoration : none;
}
.buttonli {
border-left: 0;
border-right: 0;
border-radius: 0;
margin: 2px 0px 2px 0px;
width: 100%;
background-color:#E4EAEF;
}
li.buttonli > a > p{
margin-bottom:0;
}
input[type="checkbox"]{
-webkit-appearance: checkbox;
}
I found this: https://github.com/angular-ui/bootstrap/issues/2017
But not sure how do I implement it, where should I really include this directive in my code as I am very new to AJS?
The checkbox may not display correct because the input element is nested inside the label element (even though it may be allowed, it confuses the purposes of the input and the label). If the issue is about the checkbox not being checked by default, you might need to check out the ng-checked="expression" syntax for Angular.
I see a gap between my img and my right box
I'm having some difficulty getting my website to display properly when viewed on the iPhone and iPad. The website displays properly when viewed on every desktop browser I've tried (safari, chrome, firefox), however, on the iPhone/iPad there is a tiny gap/space between the IMG and right box.
It works fine in Firefox. What is the problem?
Here's an inline link to JsFiddle.
<div id="wrapper">
<img src="http://dummyimage.com/155x155/000/fff"/>
<div id="subject">
<div id="subject_wrapper">
<span>Im span</span>
<span>im spanfdnf</span>
</div>
</div>
</div>
#wrapper {
border-top: 8px solid #457b91;
max-width: 488px;
margin: 0 auto;
overflow: hidden;
}
#wrapper img {
width: 32%;
float: left;
}
#subject {
background-color: green;
float: right;
width: 68%;
padding-bottom: 32%;
position: relative;
}
#subject_wrapper {
padding-top: 12%;
position: absolute;
height: 100%;
width: 100%;
}
#subject span {
font-family: Thonburi;
font-size: 34px;
color: #ffffff;
display: block;
padding: 0 20%;
}
#subject span:nth-child(2) {
font-size: 18px;
line-height: 8px;
}
I don't have an iPd or iPhone to hand to check this, but try commenting out the space between your elements, thus: <div id="wrapper"> <img src="http://dummyimage.com/155x155/000/fff"/><!-- --><div id="subject"> <div id="subject_wrapper"> <span>Im span</span> <span>im spanfdnf</span> </div> </div> </div> It's a pretty ridiculous fix, but it work for inline block elements, like menus made up of LIs.
twitter feed on website that is in a repeating box confusion
I have a twitter feed on my website and i'm trying to put it in a box that has a top, a middle section that repeats as needed to accommodate text and a bottom image as well as an image below the bottom. the problem is that originally the feed was in a box that didn't repeat or anything the feed was just on top of the box, but now i can't get the box set up right or the feed to do it's thing. here is my code:
#twitter_update_list {
overflow: hidden;
font-family:Arial, Helvetica, sans-serif;
font-size: 12px;
color: #FFFFFF;
line-height: 20px;
padding-top: 0;
padding-right: 0;
padding-bottom: 0;
padding-left: 0;
}
#twitter_update_list li {
font-family:Arial, Helvetica, sans-serif;
color:#000000;
list-style: none;
}
#twitter_update_list li a {
color:#f7f6e7;
text-decoration: none;
}
#twitter_update_list li a:hover {
border-bottom-width: 1px;
border-bottom-style: dotted;
border-bottom-color: #f7f6e7;
}
.twitter_top {
position:absolute;
left:632px;
top: 39px;
width: 333px;
height: 27px;
background:url(twittertop.png);
}
.twitter_mid {
width: 333px;
background:url(twittermiddle.png);
background-repeat:repeat-y;
padding: 0 15px;
}
.twitter_bot {
width: 333px;
height: 27px;
background:url(twitterbottom.png);
background-repeat:no-repeat;
margin-bottom: 0px;
}
.twitter_whale {
width: 140px;
height: 67px;
left: 900px;
background-image: url(Layer-6.png) no-repeat;
position: absolute;
left: 9px;
top: 9px;
line-height: 13px;
}
<div class="twitter_top"></div>
<div class="twitter_mid">
<ul id="twitter_update_list"></ul>
</div>
<div class="twitter_bot"></div>
<div class="twitter_whale">
<div id="twitter_div"><ul id="twitter_update_list"><li></li></ul></div>
(update list i'm not putting in here because it's just the js)
</div>
<div id="twitter_box"> <div id="twitter_top"> </div> <div id="twitter_middle"> </div> <div id="twitter_bottom"> </div> </div> I would think it would make more sense to contain them all in one div, from here you can set your styles, since you want the middle part to expand leave the height dynamic.