Need to hold mobile ad unit at bottom of screen - css

Im trying to implement a 320x50 mobile ad for my mobile version of my website. I want the ad to span be the entire width of a mobile device. However the ad is showing up small and not the entire width of my iphone, and it scrolls along with content.
I use this code in my web page to call the mobile css
<link rel="stylesheet" type="text/css" media="only screen and (max-device-width: 480px)" href="mobile2.css" />
And then in the css I have tried
div#mobilead {
width:100%;
}
I need the ad to show up at the bottom of the screen and stay in place even while scrolling.
any ideas would be greatly appreciated, thanks!
Here is the entire code as requested
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>Untitled Document</title>
<link rel="stylesheet" type="text/css" media="only screen and (max-device-width: 480px)" href="mobile2.css" />
</head>
<body>
<div id="mobileB">
<script async src="//pagead2.googlesyndication.com/pagead/js/adsbygoogle.js"></script>
<!-- TWF_mobile_banner_adsense -->
<ins class="adsbygoogle"
style="display:inline-block;width:320px;height:50px"
data-ad-client="ca-pub-xxxxxxxxx"
data-ad-slot="6479374699"></ins>
<script>
(adsbygoogle = window.adsbygoogle || []).push({});
</script>
</div>
</body>
</html>
and then the css
#mobileB {
position: absolute;
bottom:0;
left:0;
z-index: 99;
width:100%;
height:50px
}
}

Are you sure you're getting this CSS as the most priority one? How big is the ad showing now?
I would start by adding static height to the div as well, if you're sure it's always the same height.

Could you please share your html structure as well? This is needed because it depends on your div structure there is a thing called property inheritance in CSS so when you're dealing with positioning it is actually relevant to know not only the specific object's properties but its parents as well.
Now from what I see, I can't see any reason why it shouldn't scroll with the content. I am not a pro but I think your best chance would be to use fixed positioning. Based on where you want the ad to appear, you will have to set specific coordinates. For example if you would like it to appear at the top right corner as a sort of "sticky" div, this is what you could do:
position: fixed;
top: 0px;
right: 0px;
z-index: 99;
width:100%;
height:50px;
I am sorry, I didn't see that you mentioned that you need it positioned at the bottom. In that case you could do it like this:
position: fixed;
bottom:0;
left:0;
z-index: 99;
width:100%;
height:50px
At any case, whatever you decide and what you need, you should be able to achieve by playing with top/bottom/left/right, position:fixed and z-index. :) Good luck!

Related

Safari is not preventing the scrolling of <body style="overflow-y: hidden">

Here's the extremely simple HTML page
<body style="overflow-y: hidden">
...
</body>
The expected behavior of this page is: scrolling of a document is prevented because of overflow-y: hidden.
It works as expected (scrolling is prevented) everywhere except Safari.
Live demo: https://spotted-chime.glitch.me/
The question is: how to make Safari behave the same way as other browsers?
Just use overflow: hidden and it will work.
Alternatively, you can try using position: fixed on the <body> tag as well.
(NOTE: Using this approach, the body will scroll to the top as by default the top: 0.)
EDIT: For safari mobile devices, you need to use Javascript events. Explained in this answer.
https://stackoverflow.com/a/4770179/2860486
Position fixed is meant to create a div that stays in the same position on the screen while the content behind it is scrolled down.
fixed
The element is removed from the normal document flow, and no
space is created for the element in the page layout. It is positioned
relative to the initial containing block established by the viewport,
except when one of its ancestors has a transform, perspective, or
filter property set to something other than none (see the CSS
Transforms Spec), in which case that ancestor behaves as the
containing block. (Note that there are browser inconsistencies with
perspective and filter contributing to containing block formation.)
Its final position is determined by the values of top, right, bottom,
and left.
This value always creates a new stacking context. In printed
documents, the element is placed in the same position on every page.
Have you tried changing it to absolute?
body {
overflow-y: hidden;
}
#backdrop {
position: absolute;
top: 0;
right: 0;
bottom: 0;
left: 0;
background: rgba(0, 0, 0, .2);
border: 5px dashed black;
}
<!DOCTYPE html>
<html lang="en">
<head>
<title>Hello!</title>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
</head>
<body>
<div id="backdrop">
</div>
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<!-- include the Glitch button to show what the webpage is about and
to make it easier for folks to view source and remix -->
<div class="glitchButton" style="position:fixed;top:20px;right:20px;"></div>
<script src="https://button.glitch.me/button.js"></script>
</body>
</html>
Try this:
<head>
<style>
.forSafari::-webkit-scrollbar { width: 0 !important }
</style>
</head>
<body style="overflow-y: hidden" class="forSafari">
...
</body>
just use "position: relative" or fixed it will resolve the problem

Viewport size not working

I must be missing something obvious, but here it comes... I just want to establish a narrow viewport width (320px) on my browser to check / design the web layout for a mobile phone display. Why is it that if set a viewport width with the meta tag, the browser doesn't respect it? This is what I do:
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=320px" />
<style>
.content {
width: 100vw;
background-color: yellow;
}
</style>
</head>
<body>
<div class="content">
<p> Hello, this is the 'content' </p>
</div>
</body>
</html>
It just doesn't matter what size I put in the tag, it just seems to use the native display size. Can anybody tell me what the problem is and how to actually do it?
You don't need to set a viewport to check mobile compatibility. Just, click F + 12 keys in your browser chrome, and click on the mobile devices icon. This way you can select any viewport profile and check your design. See the image below:

My div background image is not displaying in IE8

I need the background image to stay centered because I am going to display charts in fixed positions and want the van (in the image) always to be visible. It's working fine in Chrome etc but nothing appearing in IE8.
http://clients.online95.com/RzMaOxkMOC/rep_mktsh.php
Thank you for any assistance you can provide.
#aa_breakdown_bg {
background: url(/RzMaOxkMOC/images/aa_breakdown_bg.jpg) center top no-repeat fixed;
overflow: hidden;
height: 100%;
}
<html lang="en">
<head>
<title>UK Breakdown Market Tracker</title>
<meta http-equiv="X-UA-Compatible" content="IE=9" />
<script type="text/javascript">
window.history.forward();
function noBack() { window.history.forward(); }
</script>
</head>
<body onload="noBack();" onpageshow="if (event.persisted) noBack();" onunload="">
<div id="aa_breakdown_bg"></div>
</body>
</html>
My guess would be that while your div is 100% height, that's 100% of zero. Try stretching both the body and html elements to 100%, too, and see if that does the trick.
body, html {
height: 100%;
}
Also, as Adrift mentions, you'll be a lot better off adding an appropriate DOCTYPE to your HTML, otherwise Internet Explorer will probably run in "quirks mode" and really confuse you.

Max height or width of an image inside a div while keeping proportions in pure css

I have two layouts, but they are conceptually the same.
One is a div containing an image. The other is two floating div elements that takes half with of their parent div at the left and right respectively containing an image each. Their parent div size and proportion depends of the body size and proportions and it is unknow until display time, so I need to specify it by percentage and not by constant width or height.
In both cases I need the maximum width or height while keeping aspect ratio and not overflowing the parent div, so image/s display as bigger as possible while keeping proportion.
I know how to keep proportions with max height or with, but not with both, so there is overflow. I also know how to accomplish this with Javascript, but I'm trying to avoid scripts in my layout and I want to handle that in css.
I haven't see anything like that in the net, nor googling gave me a clue about it, so I even doubt if this is actually possible in css.
Any solution will be greatly appreciated.
EDIT :
OK, I figured out how to do it. The deal was setting up image max-height and max-width to 100%. However I am facing another problem, so I post the layout if someone doing what I was trying to do finds it useful, and I remake the question to focus in the new problem.
Here's the layout. It will keep images aspect ration to the biggest possible size.
index.html
<html>
<meta content='width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0' name='viewport' />
<meta name="viewport" content="width=device-width" />
<head>
<link rel="stylesheet" type="text/css" href="style.css">
</head>
<body>
<div class="header"></div>
<div id="pageleft" class="page">
<img src="img/1.jpg">
</div>
<div id="pageright" class="page">
<img src="img/2.jpg">
</div>
</body>
</html>
style.css
html, body {
height: 100%;
overflow:hidden;
padding:0px;
margin:0px;
}
.header{
background-color:blue;
width:100%;
height:2em;
}
.page{
width:50%;
height:100%;
position:relative;
}
#pageright{
float:right;
background-color:green;
}
#pageleft{
float:left;
background-color:yellow;
}
.page > img{
position:absolute;
margin:auto;
top:0;
bottom:0;
max-height:100%;
max-width:100%;
}
#pageleft > img {
right:0;
}
#pageright > img {
left:0;
}
Note 1: Tested in Chrome and Firefox both desktop (resizing the window to any size/propotion) and mobile (portrait and landscape).
Note 2: I'm using A paper cut proportions for the images, but should work with any image size and proportions, even when both images have different aspect ratio.
The problem is that my header height is 2em and that is what the .page div are overflowing. Does anyone know a way to fix that?
Thanks in advance.

XHTML and Search Engine Optimization

I am new to the world of coding as well as XHTML. I am in the process of putting a sample page together however having read a number of conflicting articles, it has been suggested that the navigation div block appear above the content div block or vice versa or does it not matter at all? Below is my base code as an example.
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<meta http-equiv="Content-Language" content="en-us" />
<meta http-equiv="imagetoolbar" content="no" />
<meta name="MSSmartTagsPreventParsing" content="true" />
<meta name="keywords" content="" />
<meta name="description" content="" />
<meta name="author" content="" />
<title>Sample page</title>
<link rel="stylsheet" type="text/css" href="web.css" media="all" />
<style type="text/css" media="all">
body {
margin: 0;
padding: 0;
font-family: arial, verdana, sans-serif;
font-size: medium;
font-weight: normal;
font-style: none;
text-decoration: none;
}
#wrapper {
border: 1px solid #eeeeee;
width: 960px;
margin: 0px auto;
}
#header {
background-color: orange;
}
#leftnav {
background-color: yellow;
float: left;
}
#rightnav {
background-color: blue;
float: right;
}
#content {
background-color: gray;
}
#footer {
clear: both;
background-color: green;
}
</style>
</head>
<body>
<div id="wrapper">
<div id="header">
header
</div>
<div id="leftnav">
leftnav
</div>
<div id="rightnav">
rightnav
</div>
<div id="content">
content
</div>
<div id="footer">
footer
</div>
</div>
</body>
</html>
I think you need to elaborate your question. I am unable to figure it out that whether you are concern with SEO or HTML code. Declaring dive any where is not an SEO issue. But for better readability it would be better to make your web page in order.
Like Header at the top. Content in center and footer at the bottom. Left or right navigation menus can be mention before or after content but i suggest that first you should make left nav, then content and then right....
Ideally from an SEO perspective you would want the most important code to appear highest in the HTML source. This is one of the many factors that potentially contribute to how important certain content within a page is perceived to be to search engines.
If it were me I would make the following adjustments to the base template provided
Move the content div above the navigational elements within the source code.
Move the inline CSS code to an external CSS file to help reduce page load times and allow the most important content to move even higher in the source code.
The advice to put the navigation block before the content block is not SEO related, but usability related, in particular for those with screen readers.
The idea is to put a first (invisible to graphical browsers) link to the content of the page so navigation can be bypassed.
Your code is wrong, but here's how you can fix it:
You are using XHTML so you must include XML language information, also you should just include your general language info in your HTML declaration like this:
Microsft's Bing would flag this as an error and inform you to change it appropriately.
Don't use margins, or floats! This is like saying, ok, please move this element a little towards the left and kind of towards the right. Makes no sense! Use absolute positioning and percentages to place elements in your webpages CSS. There are too many different size screens and too many resolutions today. Float and margin are 1995, and I have no idea why people are still using these methods. We also have a society that is now driven by mobile. Keep in mind, one pixel on device will be larger or smaller than one pixel on another device. You can have 5 laptops that are all 17 inches and all have completely different resolutions! Its ok to specify a fixed pixel width and height for images and elements, but you must use percentages when placing those elements otherwise they won't appear in the right position on alternate devices and LCD screens.
If you position an element using absolute positioning with a percentage value such as:
"position: absolute; left: 30%; top: 5%;", then that particular element will be displayed on the screen at 30% from the left, and 5% from the top of the screen regardless of the device rendering it! However, if you position an element with a fixed pixel value say:
"position: absolute; left: 160px; top: 45px;" this will not render correctly on any screen other than the one you are viewing it on. Don't do this! Think about it? You have 2 separate resolutions, one is 1024x768, and the other is, 1366x768, obviously using fixed values will cause serious problems. A percentage is a percentage of the screens or browsers resolution, while a pixel value is a fixed value that hardly changes.
As for your question, you can include your navigation or any other content any way you wish, just be sure to use CSS ID's and corresponding DIV tags that map back to them. Doesn't matter where or when you specify them in your CSS at all. Its entirely up to you. Just stay away from all that "padding" and "margin" stuff, its pointless. With absolute positioning you don't have to float anything, cause everything goes exactly where you want it too from either the top-left, or bottom-right of the screen.

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