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CSS - Precedence/inheritance Of Selectors (in Svg)
I am using CSS in the context of an SVG document. In SVG, we use element names like 'rect', 'circle', & 'polyline' rather than 'p', 'table' and 'form' as HTML coders are familiar with. I am trying to apply a generic style to all 'rect' elements, and then modify that style with class styles.
The styles: Code:
rect{
fill: black;
stroke: yellow;
pointer-events: none;
.... other SVG styles ....
}
.frame{
fill: black;
stroke: magenta;
--- other SVG styles....
}
In the document, I use a 'rect' element, and apply the class style to it: Code: <rect class="frame" height="5088" id="Rect_37" width="6688" x="-1008" y="-1728" /> As you may notice, there appears to be a contradiction in the styles specified by the two selectors: 'rect' and 'frame'. One would have the element rendered with a magenta outline, while the other would outline with yellow. In practice, the stroke rendering seems to inherit from the 'rect' element style, although this seems counter-intuitive to me (class styles seem to be more specific than element styles). In researching this, I have actually found nothing that clarifies the question. Even the W3C site seems to ignore the case, as far as I can tell. Is this even valid CSS? If yes, what rule dictates how the document will get rendered? I have passed the entire SVG doc through the XML validator, but the CSS validator only accepts HTML & raw CSS. What would be the correct method of applying a global per-element-type style, but modifying it for specific instances of such elements? I am trying to keep the document as small as possible, and reduce the need for redundant style information, as this seems to have a significant impact on performance of the rendering (presently only tested using Mozilla Seamonkey) I'm pretty much of a CSS newbie, so feel free to correct whatever jargonology I've mangled. Pointers to definitive references most welcome. Thanks. --- rod. Similar TutorialsHi all, could someone please explain to me the difference between ID selectors - #idselector {ksjdfkjd} and class selectors - .classselector {askdjfak} ? I am just becoming more familiar with CSS and I'm not sure when I should use which. Thanks Hi, I'm currently designing a Wordpress skin for someone and trying to style the navigation using CSS. Given that Wordpress is so popular, I expect that someone has encountered this before - but I can't find anything about this particular problem. Basically, I'm having problems achieving the correct precedence in the CSS cascade for certain elements of my page (navigation) design. In one part of the CSS I've had to use !important to get it to behave appropriately, but then I have another part which I need to be able to denote as "very important" but I don't think this is possible. I get the feeling that I can probably do this without !important since I'm aware that it is abusing its purpose a bit (i.e. accessibility?) and instead I could do it according to the selector's specificity if I understood it better: http://www.w3.org/TR/REC-CSS2/casca...cascading-order Here's a HTML snippet of what I have in the navigation: html4strict Code: Original - html4strict Code <div id="sidebar"> <ul> <li class="page_item current_page_item"> <a title="Home" href="home.php">Home</a> <ul> <li class="page_item"> <a title="Directors" href="home.php?page_id=12">Directors</a> </li> </ul> </li> <li class="page_item"><a title="News" href="home.php?page_id=3">News</a> </li> </ul> </div>
I'm then using the following CSS to attempt to style this part: css Code: Original - css Code #sidebar { float: left; width: 149px; padding: 1em 0; } #sidebar ul { list-style: none; } #sidebar ul li { margin: 0.4em 0.8em; padding: 1px; } #sidebar ul li a { font-size: 1.5em; font-weight: 500; padding: 0.3em; text-decoration: none; color: #000; background: #FFFACD; display: block; border: 1px solid blue; } #sidebar ul li a:hover { color: #bb2a2a; } #sidebar ul li ul li { display: none; } #sidebar ul li.current_page_item ul li, #sidebar ul li.current_page_parent ul li { /* sub-menu item */ display: inline; padding: 0; margin: 0; border: none; } #sidebar ul li.current_page_item, #sidebar ul li.current_page_parent { border: 1px solid green; } #sidebar ul li.current_page_item ul li a, #sidebar ul li.current_page_parent ul li a { /* sub-menu item link */ font-size: 1.2em; padding: 0.1em 0 0.2em 17px; background: #FFFACD url(images/sub-dot.gif) no-repeat left; } #sidebar ul li.current_page_item a, #sidebar ul li.current_page_parent ul li a.current_page_item { color: #bb2a2a !important; border: none !important; } .current_page_item ul li a { color: #000 !important; border: none !important; } #sidebar ul li.current_page_parent ul li a, .current_page_parent a { border: none !important; } #sidebar ul li.current_page_item ul li a:hover, #sidebar ul li.current_page_parent a:hover { color: #bb2a2a; border: none !important; }
Using "View Formatted Source" in FF I'm finding that the color defined in ".current_page_item ul li a" is over-ruled by "#sidebar ul li.current_page_item a, #sidebar ul li.current_page_parent ul li a.current_page_item". As you can perhaps tell, the current_page_item class is set on the list item that matches the current page, and if the current page is within a sub-section (i.e. it has a parent), current_page_parent will be set to the parent list item. This gives me a navigation such as: > Home >> Directors If we're on the Home page (as in example code above), I want that to have the red colored text, but Directors to be black. If Directors is the current page, I want that to be red, and Home to be black. Basically anything that isn't the current page should be black... At the moment (because .current_page_item ul li a doesn't seem to work) I'm getting red text for Home and Directors when on the Home page... I want Directors to be left black in this situation. N.B. It's more complicated than above because I also want to do some styling with borders on the top level list items (well, the a element within), but if someone can point out where I'm going wrong with the above I think I should be able to sort the rest out... Thanks in advance - please let me know if you need more details! So the basic rules a 1) Author style sheets 2) User style sheets 3) Default browser sheets Now when you get into Author style sheets... You have: inline styles, header style information (<style type="text/css"> </style>), external style sheets and imported style sheets. I created a little example for myself to figure out the precedence. So that if all of these methods controled the same element, which method's style would come out the winner. To my suprise, the order in which you include them in the HTML document has an impact on the precedence. How so? Up until now I thought that the order of precedence was: inline styles, imported styles, external style sheets (<link />), and header style information. Code:
<html>
<head>
<link href="link.css" rel="stylesheet" type="text/css" />
<style type="text/css">
@import url(import.css);
p {
color: blue;
}
</style>
</head>
<body>
<p style="color: green;">What am I?</p>
</body>
</html>
As expected, the inline style wins. Code:
<html>
<head>
<link href="link.css" rel="stylesheet" type="text/css" />
<style type="text/css">
@import url(import.css);
p {
color: blue;
}
</style>
</head>
<body>
<p>What am I?</p>
</body>
</html>
The header style information wins. (regardless of position of @import) Code:
<html>
<head>
<style type="text/css">
@import url(import.css);
p {
color: blue;
}
</style>
<link href="link.css" rel="stylesheet" type="text/css" />
</head>
<body>
<p>What am I?</p>
</body>
</html>
External style sheet wins (<link />). How does position influence precedence of: external style sheets (Both @import and <link />) and header style information? I am displaying a Google feed on my site through an asp script that converts RSS to HTML. There is no room for images where the feed is, so we just take them out by setting display: none;. That solves one issue, but then the text is way off. I'm having trouble acessing the text after the picture so I can use absolute positioning and keep it left justified. See http://www.lsuhospitals.org/Hospitals/Bogalusa_Med_Center.htm for an example. Here's the RSS to HTML source tabbed out as best I could. This conversion isn't perfect and still needs some work. What's in red is what I need CSS access to, but only when an image is present. Whew! Code: <html><head><title></title><LINK REL="StyleSheet" HREF="../../StyleSheets/HCSD.css" TYPE="text/css" MEDIA="screen"><style>body{margin: 0px; padding:0px; background-color:white;}</style></head><body>
<table width="140px" class="BodyTextHeading1" cellspacing="0" cellpadding="0">
<tr>
<td>
BMC IN THE NEWS
</td>
</tr>
</table>
<table>
<tr>
<td class="rsscontainer">
<br>
<table border=0 width= valign=top cellpadding=2 cellspacing=7>
<tr>
<td valign=top>
<a href="http://news.google.com/news/url?sa=T&ct=us/0-0&fd=R&url=http://www.edailynews.info/articles/2007/01/04/news/news04.txt&cid=0&ei=RKemRfDvO8qMsgGgwJmXDQ">
Two perish in accidents as 2006 comes to close
</a>
<br>
<font size=-1>
<font color=#6f6f6f>
Bogalusa Daily News, LA -
</font>
<nobr>
Jan 4, 2007
</nobr>
</font>
<br>
<font size=-1>
Bonnett said the incident is still being investigated and oxicology tests are still being conducted. The initial 911 call was made to WPSO and came from the LSU-<b>Bogalusa Medical Center</b> where Johnson had been brought by private vehicle.
</font>
<br>
</table>
</td>
</tr>
<tr>
<td class="rsscontainer"><br>
<table border=0 width= valign=top cellpadding=2 cellspacing=7>
<tr>
<td width=80 align=center valign=top>
<a href="http://news.google.com/news/url?sa=T&ct=us/1i-0&fd=R&url=http://www.edailynews.info/articles/2007/01/02/news/news04.txt&cid=0&ei=RKemRfDvO8qMsgGgwJmXDQ">
<img src=http://news.google.com/news?imgefp=lpU8D0_YzTEJ&imgurl=www.edailynews.info/content/articles/2007/01/02/news/news04.jpg width=79 height=37 alt="" border=1>
</a>
</td>
<td valign=top>
<a href="http://news.google.com/news/url?sa=T&ct=us/1-0&fd=R&url=http://www.edailynews.info/articles/2007/01/02/news/news04.txt&cid=0&ei=RKemRfDvO8qMsgGgwJmXDQ">Tim Augustine, Regina Runfalo to reign over MCCA XXVII festivities</a>
<br>
<font size=-1>
<font color=#6f6f6f>
Bogalusa Daily News, LA -
</font> <nobr>Jan 2, 2007
</nobr>
</font>
<br>
<font size=-1>Runfalo, a registered nurse, serves as assistant administrator of LSU <b>Bogalusa Medical Center</b>, where she has been employed 26 years.
</font>
<br>
</table>
</td>
</tr>
</table>
And here are the relavent styles that I created. I have consulted my book "The Web Professional's Handbook" by glasshaus publishing. They have a decent CSS section (selectors on pgs. 96-97), but to no avail. Code:
.rsscontainer {
font-family: Verdana;
color: black;
width: 140px;
background-color: white;
padding: 0 0 0 0;
margin: 0 0 0 0;
}
.rsscontainer table tr td font{
font-size: 10px;
line-height: 1.3;
}
.rsscontainer table tr td a img {
display:none;
}
.rsscontainer table tr td a {
font-family: Verdana;
font-size: 10px;
color: #461D7C;
text-decoration: underline;
}
.rsscontainer table tr td a:hover {
font-family: Verdana;
font-size: 10px;
color: #7549B1;
}
.rsscontainer table tr td a:visitied {
font-family: Verdana;
font-size: 10px;
color: #7549B1;
text-decoration: underline;
}
I am trying to style the <hr> in the following peice of my page using css selectors. I have used,
Code: td div hr {...}
, but this affects other hr's outside of this menu. Is there a way to make this work without having to give the hr a class name? Thanks. Code:
<td width="140" bgcolor="#EFBE56" class="Menu_WhiteText_GoldBkgd"><div align="left">
<p class="side_menu_white"><br>
<a href="In-The-News.htm" style="color: white">in the news...</a> </p>
<p class="side_menu_white"> <a href="Press_Releases.htm" style="color: white">press releases</a> </p>
<p class="side_menu_white"><a href="Newsletter.htm" style="color: white">newsletter</a> </p>
<p class="side_menu_white"><a href="Multimedia.htm" style="color: white">multimedia </a></p>
<p class="side_menu_white"><a href="../About/annual_reports.htm" style="color: white">annual reports</a> </p>
<p class="side_menu_white"><a href="Contact.htm" style="color: white">contact media relations & communications</a> </p>
<hr>
<p><span class="Menu_WhiteText_GoldBkgd"> <a href="PhotoRelease-ConsentForm.pdf" target="_blank">consent form</a> </span> <span class="Body_Text2"><span class="Body_Text"><br>
<br>
</span></span></p>
</div></td>
It would be a great idea to have some html type viewer, or FF plugin that would show you the slectors of an html document. Does anyone know of something like this ? I'm trying to learn css and if I could just highlite some text in the html document and it would display the possible selectors for that selection I think it would be a great learning aid. Any ideas ? I'm trying to get my head round these ... A) .search input, .search .commonButton { margin-right: 7px; vertical-align: middle; } I know what the style parts do, but I don't understand what the first two lines are doing. I think the second line is saying to apply the style to all .commonButton classes within a .search class ??? Don't know about the first. -------------------------------------- B) .buttons div { white-space: nowrap; } does this mean the style is applied to any div elements within the .buttons class? I want to style something based on what comes after it. If a div is the last to have the class "combinedyes" I want to make the text red for example. I've experimented with: #EditMedHistoryDisplay div.cmMed.combinedyes + div.cmMed.combinedno But that styles the combinedno element... Any ideas? Code: <div id="EditMedHistoryDisplay"> <div class="cmMed odd combinedyes">Testosterone 2 mg <span class="medicationDelMethod">Cream-Transdermal</span> <div class="cmNotes ecmInstructions" id="cmnotes_21158" title="Click to edit" style="background-color: rgba(0, 0, 0, 0); ">1 Gm (1 Gm = 1/4 tsp = 2 pumps)</div> </div> <div class="cmMed even combinedyes">DHEA 10 mg <span class="medicationDelMethod"> Cream-Transdermal</span> <div class="cmNotes ecmInstructions" id="cmnotes_21194" title="Click to edit" style="background-color: rgba(0, 0, 0, 0); ">1 Gm (1 Gm = 1/4 tsp = 2 pumps)</div> </div> <div class="cmMed even combinedyes">Test 10 mg <span class="medicationDelMethod"> Cream-Transdermal</span> <div class="cmNotes ecmInstructions" id="cmnotes_21184" title="Click to edit" style="background-color: rgba(0, 0, 0, 0); ">1 Gm (1 Gm = 1/4 tsp = 2 pumps)</div> </div> <div class="cmMed even combinedno">Testosterone 2 mg <span class="medicationDelMethod"> Patch-Transdermal</span> <div class="cmNotes ecmInstructions" id="cmnotes_21038" title="Click to edit">It's a patch...</div> </div> </div> Hi, I'm building a page that imports two blog feeds from feedburner displaying them in separate divs. I'm a beginner at CSS and could use some help manipulating the styles of these blog feeds separately (which are linked to an external style sheet), but I don't know enough about context dependent css and selectors. I've tried researching a solution but haven't found an answer specific to what I'm doing. I've given the divs their own IDs ("newsblog" and "newcontent"). Here's an example of some of Google's css: div.feedBurnerFeedBlock li a:link { font-size: 20px; font-weight: bold; font-color: #9F0; font-family: Verdana, Geneva, sans-serif; text-decoration: none; list-style-type:none; } I need to take that code and make it specific to one div or the other, instead of applying to both. Any help or advice is greatly appreciated. Thanks, Jeff i have two p tags one after the other.. <p>text</p> <p>text</p> and I did: Code:
#head p {
float:left;
margin-top:2%;
font-style:oblique;
font-size:150%;
color:green;
}
#head p+p {
float:right;
font-size:75%;
color:red;
}
the problem is that if i do margin-top:4% to the first p; this also changes that in the adjacent p? is this correct? Hi all, I'm having an issue using CSS3 selectors. I'm not quite sure if this is even possible but here it goes. Imagine the HTML below: html4strict Code: Original - html4strict Code <tr> <th><input type="checkbox" name="cb" /></th> <td>Something here</td> <td>Someting here also</td> </tr>
Is it possible with CSS to utilize the :checked selector on "tr th input:checked" and somehow set the background color for the td-s? I've tried several combinations but to no avail. And as far as I know there's no parent selector or anything that lets you traverse backwards and I'm trying to avoid JavaScript as much as possible. I'm using Firefox 2.0.0.12. Hi everyone, So I've been coding for years and had drawn away for the design/css part, so I need some refreshing. I've tried the greater than / less than "operators" between selectors in my css declaration but to no avail. Basically what I want to do is example: Code: <form><!-- really doing this basic just to show the point -->
<fieldset>
<!-- inputs here -->
</fieldset>
<fieldset>
<fieldset><!-- ### nested fieldset inside fieldset, don't want to affect these child selectors -->
<!-- input bla -->
</fieldset>
</fieldset>
</form>
So as you can see in my brief exampl above, there's two parent selectors and one child inside the second one. I only want to change the properties of the parent ones, so that a fieldset INSIDE a fieldset doesn't get affected, and I was hoping anyone here might be able to shed some light on how to achieve this. Many thanks Here's a handy tip for you ... if like me you split your big stylesheet up into smaller ones, put them into a linked stylesheet and import them, like so: PHP Code: <link rel="stylesheet" type="text/css" href="main.css"> and in the CSS file itself ... PHP Code: @import url(css/file1.css); @import url(css/file2.css); @import url(css/file3.css); @import url(css/file4.css); some of you no doubt will already do this. here's the crux tho. if you also have some miscellaneous CSS which doesn't fit in any of the extra files and are going to include them in the linking [main] file, then you must include them after the import statements. if you don't Mozilla will ignore the imports and the extra files will not be included in the rendering. code should be like this: PHP Code: @import url(css/file1.css); @import url(css/file2.css); @import url(css/file3.css); @import url(css/file4.css); body { direction: rtl !important; } IE get's this correct regardless of the order. I have the following CSS styles: Code:
#content p { font-size: 24px; }
.smalltext p { font-size: 12px; }
Then, I create a #content div in my HTML with three paragraphs in it. I want the middle paragraph to have the .smalltext class, like this: http://www.toprival.com/temp/css_question.gif With the CSS the way I have it, the font size (12px) of the .smalltext paragraph is ignored. But if I change the CSS so both selectors are IDs, or so both are classes (and update the HTML accordintly), it works. Why is that? Hi everyone, Been racking my brains trying to figure out why a class is not being applied to a div, then i narrowed it down and realised that the ID selector is always taking precedence to the class attribute. Consdier this html page: Quote: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>Test Page</title> <style type="text/css"> #container { background-color: red; width: 100px; height: 50px; } .change_bg { background-color: green; } </style> </head> <body> <div id="container" class="change_bg" ></div> </body> </html> The div's background color comes out red and not green, as one would expect. Why is this happening? aren't styles supposed to be cascading? isn't that what CSS is all about? I can use !important but i want to know why it's not doing what is expected. Many thanks Here's the page: www.rodenator.com/index2.html Theoretically, I need all of the links on the entire site (save for the ones in the left hand nav bar (i.e. navlinks) to be similar EXCEPT in the horizontal top and footer bars where I need the <a>'s need to be white. Code:
a {color:blue;}
#navbar a {color:white;}
#footer a {color:white;}
a:hover {color:orange;}
a:active {color:grey;}
The trouble I'm running into is inheritance. I would like to set all a{}, a:hover{}, and a:active{} the same, and then simply change a{} on #navbar and #footer. But when I specify #navbar a{} and #footer a{}, those rules override the a:hover{} and a:active{}. (even if I put those rules higher in the ss) ?!?!?! TIA (and I hope I was clear enough in the explanation) I am wondering if it is possible to use previously defined CSS variables in later css definitions? I currently have a font type css variable called "texto1" that I would like to use in conjuction with an "input" variable that defines positioning and the size of my input types. Is this possible?? Code:
--both of the following need the previously specified font called "texto1"--
input.addRemoveButton {width:75px;}
input.inputBox {width:150px;}
Thanks for any help Hi, Okej I searched on the internet about this, and did not find what I was really searching for. What I found on the net is that the css code set for one div is inherited by the div's inside it. This is not what I mean by this. I come from the Object Oriented programming world, a place where inheritance allows to remove a lot of duplicated code. I was wondering wheather there is something like that in CSS. For example imagine I have a CSS block that just defines the color of the text, is there a way where I can make another block inherit from the previos CSS block? example: Code: .parent {
color: #cc0000;
}
.child {
/* This would extend the parent block. */
}
That means if I have a div and set the class as being child then the text of that class would be #000000. Is this somehow possible in CSS? thanks and regards, sim085 I have this CSS: .navcontainer li { margin:0; height:26px; } .navcontainer li#2row { height:52px; } Applying to this HTML: <div class="navcontainer"> <ul id="navlist"> <li id="active"><a href="#">Home</a></li> <li><a href="#">About Us</a></li> <li><a href="#">Printable Menus</a></li> <li><a href="#">Catering</a></li> <li><a href="#">Gift Certificates</a></li> <li><a href="#">Contact</a></li> <li id="2row"><a href="#">Franchise</a></li> </ul> </div> It seems like the id="2row" on the last link should make the second selector overwrite the first and display a different height for it. But for some reason it doesn't. This combination makes the most sense but i've tried moving thigns around and switching classes to ids, etc. to no avail. Any Ideas? P.S. I can get it to work if i use an inline style instead, but that would prohibit me from using a psuedo class i need later. Everything else in this same css file works, so it doesn't seem like it could be a problem with importing the external file or anything. I have a table that uses style sheets: <table class="Border"> but then when I place a table inside of it, it inherits the same class. Is there a way to prevent this? Thanks! Scott. |
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