Question: I have a long standing domino application that uses embedded views to display data. This application has been moved from a server 2003, 32 bit, domino 8.5 environment to a new server 2008 R2 64 bit domino 8.5.3 FP6 environment. 

I have everything up and working as before with the exception of embedded views. They are giving a SecurityException "Missing required Permissions manifest attribute in main jar: http://\*.com/domjava/nvapplet.jar". 

I have confirmed that the actionbar.jar, editor.jar, nvapplet.jar, and outline.jar are the current version on the server. I have even replaced them with the version from the IBM download (<http://www-01.ibm.com/support/docview.wss?uid=swg21662233>).

I can get this to work by displaying the view as HTML instead of Java Applet, but I don't understand what the issue is with the java version?

Answer: 
this is because on parent .tabcontent-inner you need to put overflow:auto property so that it will cover ups its children's height

you can find more suitable answer here [How do you keep parents of floated elements from collapsing?](https://stackoverflow.com/questions/218760/how-do-you-keep-parents-of-floated-elements-from-collapsing)
Add this code to Your CSS

```
.clearfix:after {
 content: " "; /* Older browser do not support empty content */
visibility: hidden;
display: block;
height: 0;
clear: both;
}

```

and 

change 

```
<div class="tabcontent-inner">

```

to

```
<div class="tabcontent-inner clearfix">

```

Semi colons are missing in the css after 

```
float : left

```

and

```
float : right

```