I am relatively new to front-end dev so a bit lost as to how i can go about this. I created a container that contains a slider and some images. My supervisor has a huge screen so obviously there will be empty space at the bottom of the screen. So he doesn't want that. Instead he wants the container to be centered horizontally and vertically based on the size of the user's screen.
How can I do this properly with as minimal code as possible? I believe there is jQuery plugin but wanted to see if there is a better way or if doing this makes sense at all or not?
Due to the flow-based nature of CSS, without Javascript this can only be done if the vertical size of the centered element is fixed, by applying a position:absolute' andtop:50%` within a fixed container, and then use negative margin to offset the container. Click here for JSFiddle Sample.
Alternatively the same effect can be reached by using display:table-cell, but that's kind of messy and loses you a lot of flexibility. Sample already supplied in the other answer here so I'll save myself the effort :)
You can do it easily using a vertical-align property.
Since vertical-align works the desired way way only in a table cell, this trick with display property can give you the desired effect.
#yourDiv {
// give it a size
width: 100px;
height: 100px;
margin: 0 auto;
}
html, body {
height: 100%;
width: 100%;
padding: 0; margin: 0;
}
html {
display: table;
}
body {
display: table-cell;
vertical-align: middle;
}
See a fiddle with demo.
Try this:
HTML:
<div class="center"></div>
CSS:
.center {
width: 300px;
height: 300px;
position: absolute;
left: 50%;
top: 50%;
margin-left: -150px;
margin-top: -150px;
background-color: red;
}
Demo: http://jsfiddle.net/WDth4/
Exactly Center an Image/Div Horizontally and Vertically:
http://css-tricks.com/snippets/css/exactly-center-an-imagediv-horizontally-and-vertically/
Related
I am currently building a website with weblflow but run into a problem that someone here might be able to help me with. The is an issue I have for multiple projects, so I would really appreciate someone's help.
Basically, if you have an image full screen size (set as background image, 100vw and 100vh), and then want to put headings/labels on top of that image pointing to specific sections in that image, how do I get these headings/labels always move with the image when someone would resize the browser?
As for now I used absolute positioning for the headings/labels and used % margins to position them where I want them to point to on the image. The image itself I have set to position relative. However, with that solution the headings/labels never exactly continue to point to the same spot on the image when resizing the browser.
I think the main issue is that when someone only changes the browser's width, the image gets (for example) smaller bc it keeps it's ratio. Vertically the headings/labels don't move bc the height was unchanged, it's just the browser's width that was changed. So horizontally it's still fine but vertically the headings are off now since the image got smaller due to resizing the browser's width. So I guess I do know why it's not working but I don't know how to fix this. If someone has a solution for this, please let me know.
As an example: if you open this page: http://nestin.bold-themes.com/classy/ and scroll down to the section ‘True value is always inside’, there is an image with 5 numbered labels, no matter how you resize the browser, these labels/numbers stay in the same spot of the image. I see this quite often on websites. How was this achieved?
Would appreciate any help!
You create a parent wrapper, put inside the image and all the divs.
the parent is relateive and the divs are absolute.
here's a small demo.
* {
box-sizing: border-box;
margin: 0;
}
img {
max-width: 100%;
display: block;
width: 100%;
}
.parent {
position: relative;
}
.parent .box {
position: absolute;
width: calc(1.6vw + 10px); height: calc(1.6vw + 10px);
border-radius: 50%;
background-color: #fff;
display: -webkit-box;
display: flex;
-webkit-box-pack: center;
justify-content: center;
-webkit-box-align: center;
align-items: center;
}
.parent .box.window {
top: 0;
left: 39%;
}
.parent .box.light {
top: 16%;
left: 46%;
}
.parent .box.pool {
top: 90%;
left: 50%;
}
.parent .box.plant {
top: 55%;
left: 3%;
}
<div class="parent">
<div class="box plant">1</div>
<div class="box window">2</div>
<div class="box light">3</div>
<div class="box pool">4</div><img src="https://images.pexels.com/photos/4075088/pexels-photo-4075088.jpeg?auto=compress&cs=tinysrgb&dpr=2&h=750&w=1260" alt=""/>
</div>
https://codepen.io/ShadiMouma/pen/BaKYyYX?editors=1100
You can achieve this with percentage positioning. For example,
In the parent div
position: relative;
In the child div
position: absolute;
top: 50%;
left: 30%;
Now the child div will always position itself 50% from the top and 30% from the left of the parent div. It does not matter what size the parent div is. I suggest you take a parent div and put the image and texts inside it.
Your example website also uses this technique.
check their code here
Another technique would be using HTML canvas. But for something simple like this, HTML canvas would be overkill.
please see link below
as you can see there's a text on header (header is an image)
the text is:
mail#yahoo.com (this text is a part of image)
I convert that part of header image to link with below code
<div id="hw"><div id="header"><img src="test.jpg" /></div></div>
and this is #link
#ResponsiveLink {
width: 267px;
height:29px;
display:block;
position:absolute;
top:100px;
margin-left:413px;
}
how can we make that link be responsive in other devices? for example when browser is narrow position of the a tag with #ResponsiveLink id changes but i want it be fixed over my text.
The best way I know, is not to put a big part of your screen as an image. On the other hand you probably don't want to cut the image into several separate images. So, I suggest using CSS Sprit.
After separating the image, you can put the parts beside each other using float, clear, and percentage widths, or use a framework like bootstrap.
If you still want to use the image as a whole header, in a single HTML tag which don't recommend at all, using percentage top for your #ResponsiveLink would work. You should just add width: 100% to all its parents: header, hw, and wrapper.
Following the comments:
#ResponsiveLink {
background: none repeat scroll 0 0 #FF0000;
display: block;
height: 0;
left: 58%;
margin-left: 0;
margin-top: 7%;
padding-bottom: 3%;
position: absolute;
top: 0;
width: 25%;
}
This will fix the problem because of the difference between percentages of position and margin, top percentage is calculated using first absolute parent's height but margin and padding percentages are calculated using parent's width. There's still a problem caused by the max width which you can fix adding a wrapper inside your #head with a width of 100% and no max width.
The other try of using floats and separated images have too many problems to write here, sorry.
What you're currently building isn't a sustainable solution and you should definitely see other replies on how to improve your site layout.
However, if you need a temporary solution, the following CSS changes will work on your current page:
#header {
margin: 0 auto;
max-width: 980px;
position: relative;
}
#ResponsiveLink {
background: none repeat scroll 0 0 #FF0000;
display: block;
height: 30%;
left: 60%;
position: absolute;
right: 12%;
top: 37%;
}
I think this is a different question from other "autofit"-related questions.
I have single-line text label that I'd like to auto-fit to always be half the screen width (dynamically during and after resize, etc.) as well as centered on the page vertically and horizontally. I've tried the jQuery FitText plugin, but it does not seem to work well with vertical centering (shifts up or down depending on the font size, sometimes below the viewport)
It may be due to my use of absolute positioning, but I can't find any alternate way to accomplish this.
My CSS:
h1 {
position: absolute;
top: 25%;
right: 25%;
left: 25%;
bottom: 25%;
display: table-cell;
vertical-align: middle;
}
This JSFiddle shows the block I would like to fill: http://jsfiddle.net/KFySS/6/
Edit: I've added a fake background image text to the fiddle above, which behaves very closely to what I'd like the real size behave to be.
I want the short text to fill the block outlined with dashed line. It should also be centered vertically and/or horizontally. This bounding box is just for illustration, but it was my starting point when using the Fittext plugin.
I found a solution that uses the new CSS3 vw, vh, and vmin font sizing units, which sizes fonts relative to the current viewport.
<div>
<h1>Hi!</h1>
</div>
div {
text-align: center;
}
h1 {
font-size: 50vmin;
position: absolute;
top: 50%;
margin-top: -25vmin;
width: 100%;
}
Here is an example for newer webkit browsers:
http://jsfiddle.net/uTykf/
The vertical centering approach I used seems a bit ugly, but best I could do. Happy to hear if there's a better approach.
I think this is what you want.
h1 {
padding: 10%;
text-align: center;
border: 4px dashed red;
margin: 25%;
}
Check out the link below:
http://jsfiddle.net/GLEcd/2/
Hey guys I simply cannot get this to work.
I have some content that is centred on the page using the margin: auto; "trick".
In this content I have an image. I need to make a color bar coming under the image continuing out to the sides of the browser. On the right side I need it to look like its coming up onto the image.
I have made this picture to try an graphically show what I mean: image
As you can see the bar runs from the left to the right side of the browser. The centred image is just placed on top of it and then an image positioned on the top of the image. But I haven't been able to get this working. Any one who would give it a go?
I tried positioning the bar relative and z-index low. This worked but the bar keep jumping around in IE 7-8-9. Centring the image wasn't easy either and placing that smaller image on top was even harder. It wouldn't follow the browser if you resized it. The problem here is that the user have to be able to upload a new picture so I cant just make a static image.
Please help I am really lost here
EDIT:
Tried the example below but when I run the site in IE 7-8-9 I have different results. link
I have made a jsFiddle which should work in Chrome and IE7-9: http://jsfiddle.net/7gaE9/
HTML
<div id="container">
<div id="bar1"></div>
<img src="http://placekitten.com/200/300"/>
<div id="bar2"></div>
</div>
CSS
#container{
width: 100%;
margin: 0 auto;
background-color: red;
text-align: center;
position: relative;
}
#bar1{
background-color: blue;
position: absolute;
top: 50%;
right: 0;
z-index: 1;
height: 30px;
width: 40%;
}
#bar2{
background-color: blue;
top: 50%;
left: 0;
z-index: 3;
height: 30px;
width: 40%;
position: absolute;
}
img{
text-align: center;
z-index: 2;
position: relative;
}
The key here is that the container is positioned relative, thus enabling absolute positioning of the child elements in relation to their parent. Use z-index to control how the elements are stacked.
A method I use for centering anything with css is:
.yourclass {
width:500px;
position:absolute;
margin-left:50%;
left:-250px;
}
'left' must be have of your width and then make it negative.
To date I have not experienced any problems with this.
How to horizontally center a floating element of a variable width?
Edit: I already have this working using a containing div for the floating element and specifying a width for the container (then use margin: 0 auto; for the container). I just wanted to know whether it can be done without using a containing element or at least without having to specify a width for the containing element.
Assuming the element which is floated and will be centered is a div with an id="content"
...
<body>
<div id="wrap">
<div id="content">
This will be centered
</div>
</div>
</body>
And apply the following CSS:
#wrap {
float: left;
position: relative;
left: 50%;
}
#content {
float: left;
position: relative;
left: -50%;
}
Here is a good reference regarding that.
.center {
display: table;
margin: auto;
}
You can use fit-content value for width.
#wrap {
width: -moz-fit-content;
width: -webkit-fit-content;
width: fit-content;
margin: auto;
}
Note: It works only in latest browsers.
This works better when the id = container (which is the outer div) and id = contained (which is the inner div). The problem with the highly recommended solution is that it results in some cases into an horizontal scrolling bar when the browser is trying to cater for the left: -50% attribute. There is a good reference for this solution
#container {
text-align: center;
}
#contained {
text-align: left;
display: inline-block;
}
Say you have a DIV you want centred horizontally:
<div id="foo">Lorem ipsum</div>
In the CSS you'd style it with this:
#foo
{
margin:0 auto;
width:30%;
}
Which states that you have a top and bottom margin of zero pixels, and on either left or right, automatically work out how much is needed to be even.
Doesn't really matter what you put in for the width, as long as it's there and isn't 100%. Otherwise you wouldn't be setting the centre on anything.
But if you float it, left or right, then the bets are off since that pulls it out of the normal flow of elements on the page and the auto margin setting won't work.
The popular answer here does work sometimes, but other times it creates horizontal scroll bars that are tough to deal with - especially when dealing with wide horizontal navigations and large pull down menus. Here is an even lighter-weight version that helps avoid those edge cases:
#wrap {
float: right;
position: relative;
left: -50%;
}
#content {
left: 50%;
position: relative;
}
Proof that it is working!
To more specifically answer your question, it is probably not possible to do without setting up some containing element, however it is very possible to do without specifying a width value. Hope that saves someone out there some headaches!
Can't you just use display: inline block and align to center?
Example.
for 50% element
width: 50%;
display: block;
float: right;
margin-right: 25%;