Maintain aspect ratio and keep <div> from expanding - html

I have a <div> in which I am trying to keep a constant aspect ratio in (because the inner elements will need to be squares). I have been able to work out the CSS so that when you make the window less wide, the height will shrink accordingly and that works great. However, when I make the window more wide, the <div> keeps expanding beyond the height of the parent. How can I stop this .BoardWrapper <div> from expanding past its parent?
.BoardWrapper {
width: 100%;
padding-bottom: 50%;
position: relative;
border: 1px solid red;
}
.Board {
position: absolute;
top: 5px; bottom: 5px; left: 5px;right: 5px;
border: 1px solid green;
}
.Left {
height: 100%;
position: absolute;
left: 0; right: 30px;
border: 1px solid blue;
}
.Right {
height: 100%;
width: 20px;
float: right;
border: 1px solid black;
}
.Container {
position: absolute;
top: 10vh; bottom: 5vh; left: 5vw; right: 5vw;
}
<div class='Container'>
<div class='Right'></div>
<div class='Left'>
<div class='BoardWrapper'>
<div class='Board'></div>
</div>
</div>
</div>
I do not really want to have to deal with a JS solution here since these are all React components. However, a solution that incorporates React or Semantic-UI would be fine (although, it seems like there should be a raw CSS solution).
I'd prefer not to edit .Left, .Right, or .Container, but I can certainly add in extra elements if it would help.

Remove the padding-bottom
.BoardWrapper {
padding-bottom: 50%;
}
and add height
.BoardWrapper {
height: 100%;
}
Working Example:
https://jsfiddle.net/zwp8vwob/

Related

IE with position absolute element will create horizontal scroll

I want to use position: absolute to create a centered element, but it will create a horizontal scrollbar on Internet Explorer 11. Please see the script below. Anyone here knows how to fix this problem?
*Update: I figured out that using overflow:hidden seems to solve this problem somehow. But when there are another one outside of the container, it will be hidden as well.
.container {
width: 80%;
margin: 0 auto;
height: 100vh;
border: 1px solid green;
position: relative;
overflow: hidden; /*This one is not the solution, though*/
}
.content {
width: 80%;
height: 30px;
position: absolute;
top: 50px;
left: 50%;
transform: translate(-50%, 0);
border: 1px solid red;
}
.another-content {
width: 40px;
height: 40px;
border: 1px solid blue;
position: absolute;
bottom: 20px;
right: -20px;
}
<div class="container">
<div class="content"></div>
<div class="another-content"></div>
</div>
You need to add following properties with the position absolute in IE
position: absolute;
top:0;
right: 0;
left: 0;
bottom:0; //specify all including bottom:0
The scrollbar show up in all browsers, not only IE. You can do the following:
The biggest issue is that the left: 50% and width: 80% together are adding to the total width and forcing the horizontal scrollbar to show up in some browsers (e.g. Internet Explorer and MS Edge). You set the width to 80%, so divide the remaining 20% between the left and right border and you'll end up with 10% each. Simply use left: 10% to achieve the same result, but without the side effect of the horizontal scrollbar.
Also when you set the size to 100% and then add border, those borders will be out of the view and cause the scrollbars to show up. This is the same in all browsers. Use box-sizing: border-box to force the browser to include the border in the height and width calculation.
The height: 100vh makes the box height equals to the view port. However, the body has default margins which vary from one browser to another. You can either set those margins to zero body { margin: 0; }, or change the height to height: 100% which is 100% of the container which the body in this case.
Try this:
.container {
width: 100%;
height: 100%;
border: 1px solid green;
position: relative;
box-sizing: border-box;
}
.content {
width: 80%;
height: 30px;
position: absolute;
top: 50px;
left: 10%;
border: 1px solid red;
}
<div class="container">
<div class="content"></div>
</div>
Thanks for your replies. Though they are not direct solution, they helped me a lot to figure out how to solve it.
The cause is as what Racil Hilan said. When I use left:50% and width:80%, the content width will be added up and create a horizontal scroll, which is not ignored by only IE. And my point is to avoid creating that added-up width. Here is my two way to workaround this one.
* {
box-sizing: border-box;
}
.container {
width: 100%;
height: 100vh;
border: 1px solid green;
position: relative;
}
.content {
width: 80%;
height: 30px;
position: absolute;
top: 50px;
left: 0;
right: 0;
border: 1px solid red;
margin: 0 auto;
}
.content-wrapper {
border: 1px solid black;
height: 30px;
position: absolute;
top: 100px;
left: 0;
right: 0;
}
.another-content {
width: 80%;
display: block;
height: 100%;
border: 1px solid red;
margin: 0 auto;
}
<div class="container">
<div class="content"></div>
<div class="content-wrapper">
<div class="another-content"></div>
</div>
</div>

CSS bug in Chrome: how to remove space between items

I have found an issue in a plugin I am developing. There is a space between the boxes when the percentages add up exactly. This issue also only arises at certain widths - adjusting the width of the .wrapper div will in fact display the items correctly.
Why does this happen? And why is it seemingly only at certain sizes?
How do I fix it? I can not simply adjust the width of the .wrapper
.wrapper {
width: 454px;
height: 200px;
position: relative;
border: 1px solid #ddd;
}
.inner {
width: auto;
height: 100%;
position: relative;
}
.item-holder {
width: 100%;
height: 100%;
position: relative;
}
#item1 {
position: absolute;
width: 49.8%;
height: 49.8%;
top: 16.6%;
left: 41.5%;
background: red;
}
#item2 {
position: absolute;
width: 8.7%;
height: 33.2%;
top: 33.2%;
left: 91.3%;
background: green;
}
<div class="wrapper">
<div class="inner">
<div id="item1">
</div>
<div id="item2">
</div>
</div>
</div>
Link to fiddle: https://jsfiddle.net/4pve7ws4/
The width and other numbers get rounded to an integer number of pixels, sometimes this can lead to unexpected results.
You should round the numbers yourself, or try to go further in details like 49.8957515 which sometimes works.

Percentile height doesn't work CSS. Fullscreen page possible?

I'm using a WebView in my android application and I have an interface that should (otherwise) be simple to design, but due to the issue with percentile based height not working I'm running into some issues.
The device should not have any scrolling and I need to lay the page out with certain elements containing a certain percentage size in the screen. Here's my CSS.
#container {
width: 100%;
height: 100%;
overflow: hidden;
border: 5px solid green;
}
#header {
width: 100%;
height: 60%;
border: 1px solid blue;
}
Now with the following HTML
<div id="container">
<div id="header">...</div>
</div>
I should have a container that takes up 60% of the screens height, correct? That would only make sense because the parent container takes up 100% of the screens height. This is absolutely essential to my applications completion and my goal was to be done by tomorrow and this is my last interface that requires being designed.
Thanks for any help.
NOTE:
I've also tried this:
#container {
width: 100%;
height: 100%;
border: 5px solid blue;
position: absolute;
top: 0;
left: 0;
overflow: hidden;
}
#header {
position: relative;
top: 40px;
left: 0;
width: 100%;
height: 60%;
border: 1px solid black;
}
Picture:
By default, html, body tags have height: auto, so it makes sense to style them first, just add full height for both
html, body{
height: 100%;
}
/*as this class is parent of #container, is also must have full height*/
.main-view{
height: 100%;
}
#container {
width: 100%;
height: 100%;
overflow: hidden;
border: 5px solid green;
}
#header {
width: 100%;
height: 60%;
border: 1px solid blue;
}
<div class="main-view">
<div id="container">
<div id="header">
</div>
</div>
</div>

Height equal to dynamic width (CSS fluid layout) + Expand to contain overflow

Hi — is it possible to have a div with it's height equal to a fluid width expand to contain its content within a narrow viewport?
I figured out a work around with a solid colour div: http://jsfiddle.net/2nprw0xq/
But not with a border: http://jsfiddle.net/534k9e2n/
Here's the code I'm using. Thanks, B.
<div class="holder">
<div class="shape"></div>
<div class="shape_outer">
<div class="shape_inner"> Text... </div>
</div>
</div>
.
.holder {
display: inline-block;
position: relative;
width: 50%;
}
.shape {
margin-top: 100%;
}
.shape_outer {
position: absolute;
top: 0;
bottom: 0;
left: 0;
right: 0;
border: 1px solid #111;
}
.shape_inner {
padding: 20px;
}
Move border to your inner element and then add 100% width and 100% min-height, like this:
.shape_inner {
border: 1px solid #111;
padding: 20px;
min-height: 100%;
width: 100%;
}
Check it out: http://jsfiddle.net/534k9e2n/1/

Content Divs below IMG with 100% width will not properly display below IMG

Issue: I am trying to make a layout with a fixed header for nag and below that will be an image that will fit the page. below that I want divs for content. the problem I am facing is that I cannot get both the image and the content divs to fit the screen and stack vertically.
The IMG is set to absolute because its the only way I could get it to 100% fit the screen without adjusting the margins. however when I do this the divs below that I am going to use for content: .body2 and .body3 do not show.
I want to get everything flush with the screen of the browser and stacked properly.
HTML:
<header>
<div id="headernav">
</div>
</header>
<div id="FixedBKG">
<img src="Images/imgbkg.JPG" id="bkgimg"/>
<div id="content">
<div class="body2">
</div>
</div>
<div id="content">
<div class="body3">
</div>
</div>
</div>
</body>
CSS:
#headernav {
height: 70px;
top: -10px;
left: 0px;
width: 100%;
background-color: black;
position: fixed;
z-index: 10;
color: white;
margin:0px auto;
}
#FixedBKG {
width: 100%;
height: 100%;
}
#bkgimg {
width: 100%;
left: 0px;
top: 0px;
position: absolute;
}
.body2 {
background-color: #C0C0C0;
height: 400px;
width: 100%;
left: 0px;
right: 0px;
display: block;
}
.body3 {
background-color: black;
height: 400px;
width: 100%;
left: 0px;
right: 0px;
display: block;
}
Ok, here's a second draft: FIDDLE.
General comments:
1.Try not to use positioning on a straight-forward layout like this one.
I changed the image to display: block and made it 100% of the div width - it will then adjust itself to the container, and you can
then adjust the container as you wish.
I changed the heights of the two lower divs and added a border so you could see them easier in the fiddle.
You really don't need the 100% widths, since divs are 100% by definition.
You might consider styling the body, and add a container element to give you more flexibility on formatting.
Let me know if you'd like to change anything else.
CSS
img {
display: block;
width: 100%;
}
#headernav {
height: 70px;
line-height: 70px;
text-align: center;
width: 100%;
background-color: black;
color: white;
}
#FixedBKG {
width: 100%;
}
.body2 {
background-color: #C0C0C0;
height: 200px;
width: 100%;
border: 1px solid red;
}
.body3 {
background-color: black;
height: 200px;
width: 100%;
border: 1px solid yellow;
}