facebook photo/ image vertical align? - javascript

How does facebook vertically align its photos? I inspected their img tag and its parent. The parent doesn't use padding and the img doesn't use margins. There is vertical-align, but I don't think it applies in this case(see Image not vertical-align:middle). I normally vertically align using margins (and sometimes with javascript) so I'm interested in how facebook does it without padding or margins. Does anyone know how they do it?

After doing some research in facebook's website i found the answer,here is the code
<!DOCTYPE html>
<html>
<head>
<style type="text/css">
.img_contain {
height: 700px;
text-align: center;
line-height: 700px;
border: #333333 1px solid;
}
.img_contain img {
display: inline-block;
vertical-align: middle;
}
</style>
</head>
<body>
<div class="img_contain">
<img src="images/image.jpg" />
</div>
</body>
</html>
Only thing i was missing is adding <!DOCTYPE html> at the top of the document.Now its working.
And one more thing the height and line-height of the parent should be equal and it should be greater than height of the image it contains

TESTED CODE using display: table-cell
*refer to http://www.w3schools.com/cssref/pr_class_display.asp*
test page at http://anotherfeed.com/stack/css/valign.php
<!DOCTYPE html>
<html>
<head>
<title>StackOverflow on Another Feed</title>
<meta http-equiv="Content-Type" content="text/html;charset=utf-8" />
</head>
<body>
<div style="height: 500px; min-height: 500px; width: 500px; border: 1px solid; display: table-cell; vertical-align: middle; text-align: center">
<img src="http://anotherfeed.com/facebook_icon.png" style="display: inline-block; margin-left: auto; margin-right: auto;" />
</div>
</body>
</html>

Related

How to align html elements horizontally when they have different parents

I have a basic html document with a sticky header and footer. I also have a div below the header that sticks to the header because it will eventually contain some tabs above a form. I have tried to align the form below this vertically but they don't line up. The problem is the tab div does not have a scrollbar but the form does. This means the width of the form is different to the width of the tabs. I tried to set them to 70% of the width and center but, because of the scrollbar they don't line up. I've tried some javascript to get the width of the scrollbar and then add this to the current right margin but it doesn't work. You will see the form is not as wide as the tabs div. I have spent hours on this.
Also, I tried adding a margin-bottom to the form but no margin appears below the border.
$(document).ready(function () {
setFormsWidth();
});
function setFormsWidth() {
let scrollbox = document.createElement('div');
// Make box scrollable
scrollbox.style.overflow = 'scroll';
// Append box to document
document.body.appendChild(scrollbox);
// Measure inner width of box
scrollBarWidth = scrollbox.offsetWidth - scrollbox.clientWidth;
// Remove box
document.body.removeChild(scrollbox);
// Get current width of right margin, which should be 30% of the
// width of the form-panel parent (the content class).
var formPanel = document.getElementById("main-form");
// Get the current right margin and remove the px at end of number
var style = window.getComputedStyle(formPanel);
var marginRightString = style.getPropertyValue('margin-right');
var marginRight = marginRightString.slice(0,-2);
// now addthe scrollBarWidth to the right margin
var newMargin = marginRight + scrollBarWidth;
formPanel.style.marginRight = newMargin + "px";
}
html, body {
height: 100%;
margin: 0;
overflow:hidden;
}
.wrapper {
height: 100%;
display: flex;
flex-direction: column;
}
.header, .footer {
background: silver;
}
.page {
flex: 1;
overflow: auto;
background: pink;
}
.content {
background-color: green;;
}
.tabs {
width: 70%;
height: 50px;
background-color: aqua;
margin: 0 auto;
border-bottom: solid #FE6D73 7px;
}
.form-panel {
width: 70%;
height: 1000px;
background-color: #FFF;
margin: 0 auto;
overflow-y: auto;
border-bottom: solid #FE6D73 7px;
}
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<link rel="stylesheet" href="style.css"/>
</head>
<body>
<div class="wrapper">
<div class="header">Header</div>
<div class="tabs">
THIS IS TAB
</div>
<div class="page" id="calculator">
<div style="height:1000px;">
<div class="content">
<form class="form-panel" id="main-form">THIS IS FORM</form>
</div>
</div>
</div>
<div class="footer">Footer</div>
</div>
<script type="text/javascript" src="script.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.6.0/jquery.min.js"></script>
</body>
</html>
I suggest to show the scrollbar besides .form-panel element but not .page div, so it will not affect centering .form-panel element.
Here is how to change the css.
Set height to 100% for all elements between .page and .form-panel elements, including .form-panel itself, so that scrollbar for .page will not be shown
Set box-sizing: border-box; for .form-panel, so that the border is drawn inside .form-panel
move .footer outside .page element
If you would like to set a specific height for .form-panel, you can create a div inside it and set its height like below:
html, body {
height: 100%;
margin: 0;
overflow:hidden;
}
.wrapper {
height: 100%;
display: flex;
flex-direction: column;
}
.header, .footer {
background: silver;
}
.page {
flex: 1;
overflow: auto;
background: pink;
}
.content {
background-color: green;
height: 100%;
}
.tabs {
width: 70%;
height: 50px;
background-color: aqua;
margin: 0 auto;
border-bottom: solid #FE6D73 7px;
}
.form-panel {
width: 70%;
height: 100%;
background-color: #FFF;
margin: 0 auto;
overflow-y: auto;
border-bottom: solid #FE6D73 7px;
padding-bottom: 7px;
box-sizing: border-box;
}
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<link rel="stylesheet" href="style.css"/>
</head>
<body>
<div class="wrapper">
<div class="header">Header</div>
<div class="tabs">
THIS IS TAB
</div>
<div class="page" id="calculator">
<div style="height:100%;">
<div class="content">
<form class="form-panel" id="main-form">
<div style="height:1000px">
THIS IS FORM
</div>
</form>
</div>
</div>
</div>
<div class="footer">Footer</div>
</div>
</body>
</html>

How to create a text inside a box using HTML and CSS?

I'm trying to create a text(S) inside a rectangular box and the other one(Fox.) outside the box,
Just like this:
I tried to create it but something is wrong
Here's the code:
div {
width: 18px;
height: 72px;
padding: 10px;
border: 5px solid black;
margin: 0;
}
<html>
<head>
</head>
<body>
<div><h1>S</h1></div><p><h1>Fox.</h1>
</body>
</html>
Fixed it for you.
The problem was that you used 2 h1 next to each other.
Each h1 will automatically go to a new line.
I fixed it by using only one h1 and added a <block> where you can add the styles.
block {
width: 18px;
height: 72px;
padding: 10px;
border: 5px solid black;
margin: 0;
}
<html>
<head>
</head>
<body>
<h1>
<block>S</block> Fox.
</h1>
</body>
</html>
the basic idea is not bad! Now I will show you a solution to your problem and we will analyze all the components together.
Let's think about the structure of DIV. First you will need two divs with a reference class or reference ID and you want them to be arranged side by side.
To put them side by side you could create an additional parent div, of flexible type (called father).
We also need 2 texts. In this example I will use simple spans.
We also create a style.css file where we will store the style of our containers
So we can write this.
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<!-- Link your stylesheet -->
<link rel="stylesheet" href="style.css">
<title>Title</title>
<div id="father">
<div id="sonOne"><span>S</span></div>
<div id="sonTwo"><span class="fox">FOX.</span></div>
</div>
</head>
<body>
</body>
</html>
For the style instead, we need to assign the parent a flexible orientation and line type. For the style, on the other hand, we need to assign a flexible, row-type orientation to the parent. To the first div should be put the border and to the second div, the text inside should be bold
Create style.css and try all togheter. Run this!!!
#sonTwo,#sonOne {
display: flex;
flex-direction: column;
justify-content: center;
align-items: center;
}
#sonTwo,#sonOne span {
font-size: 50px;
}
#father {
display: flex;
flex-direction: row;
}
#sonOne {
border: 2px solid black;
border-radius: 5px;
padding: 5px;
}
#sonTwo {
padding: 5px;
}
.fox {
font-weight: bold;
}
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<!-- Link your stylesheet -->
<link rel="stylesheet" href="style.css">
<title>Title</title>
<div id="father">
<div id="sonOne"><span>S</span></div>
<div id="sonTwo"><span class="fox">FOX.</span></div>
</div>
</head>
<body>
</body>
</html>
For the S on the other hand, you could assign a font from Google Fonts that we have the borders the way you like them

CodeMirror doesn't scroll down completely, Cursor is hidden behind div

I would like to use the very excellent texteditor CodeMirror in fullscreen mode in a browser window and I would like to add a fixed header for some kind of menu - or at least space for a few buttons with some functionality.
So I've added a div with "position: fixed" to the top and added a padding-top to the div with the codemirror object. The problem comes up, when there's enough text that scrolling happens. After moving the cursor down/scrolling the content up and moving the cursor up again, the cursor goes behind the div but the content doesn't scroll fully down. Cursor is hidden, I cannot see the content. Only scrolling via scrollbar works.
Do I need to change the html/css with the fixed div?
Or do I need to check whether the cursor comes behind/under the div and I have to let CodeMirror scroll manually? I tried this but didn't manage to do it programmatically :-(
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<link rel=stylesheet href="http://codemirror.net/doc/docs.css">
<link rel=stylesheet href="http://codemirror.net/lib/codemirror.css">
<script src=http://codemirror.net/lib/codemirror.js></script>
<script src=http://codemirror.net/mode/htmlmixed/htmlmixed.js></script>
<style type=text/css>
.CodeMirror {float: left; width: 100%; height: 100%; }
</style>
</head>
<body>
<div style="position: fixed; height: 28px; z-index:999; width: 100%; background: lightgray;">
<button>Some action</button>
</div>
<div style="padding-top: 23px">
<textarea id=content name="content"></textarea>
</div>
<script>
var editor = CodeMirror.fromTextArea(document.getElementById('content'), {
mode: 'application/x-httpd-php',
lineNumbers: true
});
</script>
</body>
</html>
check out here as well: http://jsfiddle.net/fxvef3bw/1/
I found a solution on my own.
Instead of two overlapping divs, I use two divs (non-overlapping), with style "position: absolute". They don't overlap, so scrolling is fine.
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<link rel=stylesheet href="http://codemirror.net/doc/docs.css">
<link rel=stylesheet href="http://codemirror.net/lib/codemirror.css">
<script src=http://codemirror.net/lib/codemirror.js></script>
<script src=http://codemirror.net/mode/htmlmixed/htmlmixed.js></script>
<style type=text/css>
.CodeMirror {float: left; width: 100%; height: 100%; }
</style>
</head>
<body>
<div style="padding: 1px; position: absolute; margin: 0px; top: 0px; bottom: auto; left: 0px; right: 0px; width: auto; height: 24px; background: lightgrey;">
<button>some action</button>
</div>
<div style="padding: 1px; position: absolute; margin: 0px; left: 0px; right: 0px; top: 28px; bottom: 0px; width: auto; height: auto; ">
<textarea id="content" name="content" style="display: none;"></textarea>
</div>
<script>
var editor = CodeMirror.fromTextArea(document.getElementById('content'), {
mode: 'application/x-httpd-php',
lineNumbers: true
});
</script>
</body>
</html>
Updated jsfiddle is here: http://jsfiddle.net/fxvef3bw/2/
I hope I can get some comments about possible side effects or drawbacks of the position absolute. Otherwise it seems to be fine for me.

how to add hidden div or button behind the button?

can you please tell me how to add hidden div or button behind the button?Actully I need to increase the click area without increase the x image size so that user can click in whole area.?
here is my code
<!DOCTYPE html>
<html>
<head>
<link href="http://code.jquery.com/mobile/1.4.2/jquery.mobile-1.4.2.min.css" rel="stylesheet" type="text/css" />
<script src="http://code.jquery.com/jquery-1.11.0.min.js"></script>
<script src="http://code.jquery.com/mobile/1.4.2/jquery.mobile-1.4.2.min.js"></script>
<meta charset="utf-8">
<title>JS Bin</title>
</head>
<body>
<div data-role="page" id="wrapper">
<button id="openPopup">openPOP</button>
<div data-role="popup" data-dismissible='false' id="testCaseId" data-theme="b" data-overlay-theme="a">Close
<div data-role="fieldcontain">
<label for="testCaseIDValue">TestCase Name:</label>
<input type="text" name="testCaseIDValue" id="testCaseIDValue" value="" class="inputTextTestCase" />
</div>
Done
</div>
</div>
</body>
</html>
js Code
$(function(){
$('#openPopup').click(function(){
$( "#testCaseId" ).popup( "open" );
})
})
Use the close icon as a centered background image of a larger element.
HTML
CSS
a {
display: block;
background: url("http://icons.iconarchive.com/icons/custom-icon-design/mini/24/Close-icon.png") no-repeat center center #eee;
width: 50px;
height: 50px;
}
Demo: http://jsfiddle.net/eAxb8/
Try setting a <div> that acts as a container for the button graphic and is the same color as your background, but clickable.
For example,
<a href = "whatever.com">
<div id="hidden_button">
<div id="button_graphic">
Button Text
</div>
</div>
</a>
stylesheet.css
a {
text-decoration: none;
}
#hidden_button {
background: #ffffff;
width: 300px;
height: 300px;
}
#button_graphic {
width: 150px;
height: 150px;
border: 4px solid black;
border-radius: 5px;
color: #ffffff;
text-align: center;
background-color: #F38630;
margin: auto;
margin-top: 75px;
}
If I've done my CSS correctly, this should create a square button with rounded edges that is 150px by 150px, with a container around it that is 300px by 300px and appears invisible, but is still clickable. Adjust the sizes to meet your needs.
To me, it seems like you look for an invisible area that acts like a button.
See the following fiddle. To remove the blue color, just delete the code style="background-color:lightblue"
http://jsfiddle.net/p943a/2/

js animating block with image inside

Have a block with another relative block inside, which has a background in style of parent block (like on a a picture). When i trying to change width of my block, relative block disappears.
picture
<!DOCTYPE html>
<html>
<head>
<title></title>
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<style>
#button
{
width: 195px ;
height: 60px;
display: inline-block;
position: relative;
background: url('/res/bg.png') repeat-x;
}
#button div#arrow
{
background: url('/res/Arrow.png') no-repeat;
width: 30px;
height: 60px;
display: block;
position: absolute;
top:0px;
right: -30px;
}
</style>
</head>
<body>
<div id='button'>
<div id='arrow'></div>
</div>
</body>
</html>
Forgot about the code of animating:
$('#button').animate({width:'-=120px'}, 2000)
Set overflow: visible !important on the parent div.
Demo: http://jsfiddle.net/P5CHX/2/

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