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by: Tony Benham |
last post by:
I have been getting to grips with css recently (very slowly), and one area I
have a problem is when to use class selectors or id selectors. Are there any
guidelines when to use each type ? The key difference is, AFAICS, is that id
selectors can only be used once, whereas class selectors can be used
repeatedly ? Is this the main differentiator ?
Regards
Tony B
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by: Sue Sims |
last post by:
From <URL: http://www.w3.org/TR/CSS21/selector.html#id-selectors >
I find the following text:
"What makes attributes of type ID special is that no two such attributes
can have the same value;..."
In the second example, I find the rule:
*#z98y { letter-spacing: 0.3em }
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by: kayodeok |
last post by:
Nice Take on Selectors from Eric Meyer
Appropriate Selections
http://www.meyerweb.com/eric/thoughts/200312.html#t20031211
--
Kayode Okeyode
http://www.kayodeok.co.uk/weblog/
http://www.kayodeok.btinternet.co.uk/favorites/webdesign.htm
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by: Jamie |
last post by:
Hi,
This line is straight from page 82 of "Eric Meyer on CSS":
td#main {background: #FFD; color: black; border: 2px solid #797;
border-width: 2px 2px 2px 1px; }
Isn't it redundant to have "2px" in the border rule when you have an
explicit border-width rule? What am I missing?
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by: Jamie |
last post by:
Hi everyone,
Meyer on p. 91 of "Eric Meyer on CSS" says that link styles must be
added in LVHA order (link, visited, hover, active) or link styles will
stop working. Why is that? Is there an automatic inheritance from Link
--> Visited --> Hover --> Active?
Thanks,
Jamie
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by: ChChanges |
last post by:
Hi - I am going to buy a few books on CSS by Eric Meyer - I see that he is
one of the leaders in CSS...
Could somebody give me their opinion about the newer book 'More Eric Meyer
on CSS' ?
How does it compare to the original book 'Eric Meyer on CSS: Mastering the
Language of Web Design' ?
Which one is preferred?
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by: Andy Fish |
last post by:
hi,
I am using descendent selectors to format cells within a table
according to the css class of the table. However, when using nested
tables, it seems to pick up the outer matching rule rather than the
inner one. here's a self-contained example:
<HTML><HEAD>
<style type="text/css">
table.foo td { background-color:red; }
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by: Rhino |
last post by:
What's the simplest way to determine which, if any, of my selectors are not
needed in a given stylesheet?
I have a small number of HTML pages that share two stylesheets; one
stylesheet is for display purposes and one is for printing. I suspect that
some of the selectors in my stylesheet are no longer needed due to deletions
of parts of the HTML pages and would like to remove those selectors from my
stylesheets. But I'd like to avoid a...
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by: Alan Silver |
last post by:
Hello,
In an attempt to get my head around this CSS business, I have been
reading Eric Meyer's two "on CSS" books. All seems clear and sensible,
but I have a question which the good folks here might be able to answer.
I thought that one of the great benefits of CSS was to allow you to mark
up the document so that the semantic meaning was clear, and then use the
CSS for display. In a couple of projects (one in each book), EM has HTML...
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by: Oralloy |
last post by:
Hello folks,
I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>".
The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed.
This is as boiled down as I can make it.
Here is my compilation command:
g++-12 -std=c++20 -Wnarrowing bit_field.cpp
Here is the code in...
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by: jinu1996 |
last post by:
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The Art of Business Website Design
Your website is...
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by: tracyyun |
last post by:
Dear forum friends,
With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the choice of these technologies. I'm particularly interested in Zigbee because I've heard it does some...
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by: isladogs |
last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM).
In this session, we are pleased to welcome a new presenter, Adolph Dupré who will be discussing some powerful techniques for using class modules.
He will explain when you may want to use classes instead of User Defined Types (UDT). For example, to manage the data in unbound forms.
Adolph will...
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by: TSSRALBI |
last post by:
Hello
I'm a network technician in training and I need your help.
I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs.
The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols.
I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
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by: adsilva |
last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
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by: 6302768590 |
last post by:
Hai team
i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
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by: muto222 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
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by: bsmnconsultancy |
last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating effective websites that not only look great but also perform exceptionally well. In this comprehensive...
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