How can I put the menu bars to the right? [duplicate] - html

The body of my html document consists of 3 elements, a button, a form, and a canvas. I want the button and the form to be right aligned and the canvas to stay left aligned. The problem is when I try to align the first two elements, they no longer follow each other and instead are next to each other horizontally?, heres the code I have so far, I want the form to follow directly after the button on the right with no space in between.
#cTask {
background-color: lightgreen;
}
#button {
position: relative;
float: right;
}
#addEventForm {
position: relative;
float: right;
border: 2px solid #003B62;
font-family: verdana;
background-color: #B5CFE0;
padding-left: 10px;
}
<!DOCTYPE html>
<html lang="en">
<head>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.js"></script>
<script type="text/javascript" src="timeline.js"></script>
<link rel="stylesheet" href="master.css" type="text/css" media="screen" />
</head>
<body bgcolor="000" TEXT="FFFFFF">
<div id="button">
<button onclick="showForm()" type="button" id="cTask">
Create Task
</button>
</div>
<div id="addEventForm">
<form>
<p><label>Customer name: <input></label></p>
<p><label>Telephone: <input type=tel></label></p>
<p><label>E-mail address: <input type=email></label></p>
</form>
</div>
<div>
<canvas id="myBoard" width="600" height="600" style="background:lightgray;">
<p>Your browser doesn't support canvas.</p>
</canvas>
</div>
</body>
</html>

Floats are okay, but problematic with IE 6 & 7.
I'd prefer using the following on the inner div:
margin-left: auto;
margin-right: 0;
See the IE Double Margin Bug for clarification on why.

You can make a div that contains both the form & the button, then make the div float to the right by setting float: right;.

Old answers. An update: use flexbox, pretty much works in all browsers now.
<div style="display: flex; justify-content: flex-end">
<div>I'm on the right</div>
</div>
And you can get even fancier, simply:
<div style="display: flex; justify-content: space-around">
<div>Left</div>
<div>Right</div>
</div>
And fancier:
<div style="display: flex; justify-content: space-around">
<div>Left</div>
<div>Middle</div>
<div>Right</div>
</div>

You can use flexbox with flex-grow to push the last element to the right.
<div style="display: flex;">
<div style="flex-grow: 1;">Left</div>
<div>Right</div>
</div>

Note that while this answer is not wrong, it is very outdated methodology written in 2015
Other answers for this question are not so good since float:right can go outside of a parent div (overflow: hidden for parent sometimes might help) and margin-left: auto, margin-right: 0 for me didn't work in complex nested divs (I didn't investigate why).
I've figured out that for certain elements text-align: right works, assuming this works when the element and parent are both inline or inline-block.
Note: the text-align CSS property describes how inline content like text is aligned in its parent block element. text-align does not control the alignment of block elements itself, only their inline content.
An example:
<div style="display: block; width: 80%; min-width: 400px; background-color: #caa;">
<div style="display: block; width: 100%">
I'm parent
</div>
<div style="display: inline-block; text-align: right; width: 100%">
Caption for parent
</div>
</div>
Here's a JS Fiddle.

If you have multiple divs that you want aligned side by side at the right end of the parent div, set text-align: right; on the parent div.

Do you mean like this? http://jsfiddle.net/6PyrK/1
You can add the attributes of float:right and clear:both; to the form and button

Maybe just:
margin: auto 0 auto auto;

Simple answer is here:
<div style="text-align: right;">
anything:
<select id="locality-dropdown" name="locality" class="cls" style="width: 200px; height: 28px; overflow:auto;">
</select>
</div>

Sometimes float: left leads to design problems, for that cases you can use display flex like this:
.right {
display: flex;
justify-content: flex-end;
margin-left: auto;
margin-right: 0;
}
<div>
<div class="right">Right</div>
</div>

If you are using bootstrap, then:
<div class="pull-right"></div>

One way could be setting a parent div for those elements that need to be pulled right and do the rest like the way shown in the the example below to have them right-aligned:
.parent-div {
display: flex;
float: right;
}
/*Below: child-div styling is not needed for this purpose! this is just for demonstration:*/
.child-div {
text-align: center;
background-color: powderblue;
margin: auto 10px;
height: 100px;
width: 50px;
}
<div class="">CANVAS div </div>
<div class="parent-div">
<div class="child-div">child 1</div>
<div class="child-div">child 2</div>
<div class="child-div">...</div>
<div class="child-div">child n</div>
</div>

If you don't have to support IE9 and below you can use flexbox to solve this: codepen
There's also a few bugs with IE10 and 11 (flexbox support), but they are not present in this example
You can vertically align the <button> and the <form> by wrapping them in a container with flex-direction: column. The source order of the elements will be the order in which they're displayed from top to bottom so I reordered them.
You can then horizontally align the form & button container with the canvas by wrapping them in a container with flex-direction: row. Again the source order of the elements will be the order in which they're displayed from left to right so I reordered them.
Also, this would require that you remove all position and float style rules from the code linked in the question.
Here's a trimmed down version of the HTML in the codepen linked above.
<div id="mainContainer">
<div>
<canvas></canvas>
</div>
<div id="formContainer">
<div id="addEventForm">
<form></form>
</div>
<div id="button">
<button></button>
</div>
</div>
</div>
And here is the relevant CSS
#mainContainer {
display: flex;
flex-direction: row;
}
#formContainer {
display: flex;
flex-direction: column;
}

display: flex;
justify-content: space-between;
hasnt been mentioned. if there are 2 elements (even if one is an empty div) it will place one on the left and one on the right.
<div style="display: flex; justify-content: space-between;">
<div id="emptyDiv"></div>
<div>I'm on the right</div>
</div>

You can simply use padding-left:60% (for ex) to align your content to right and simultaneously wrap the content in responsive container (I required navbar in my case)
to ensure it works in all examples.

You can do it easy by just add this css:
(Works in IE11)
<div>
<!-- Subtract with the amount of your element width -->
<span style="margin-left: calc(100vw - 50px)">Right</span>
</div>

I know this is an old post but couldn't you just use <div id=xyz align="right"> for right.
You can just replace right with left, center and justify.
Worked on my site:)

Related

Vertically Aligning Text & Image [duplicate]

Why won't vertical-align: middle work? And yet, vertical-align: top does work.
span{
vertical-align: middle;
}
<div>
<img src="https://via.placeholder.com/30" alt="small img" />
<span>Doesn't work.</span>
</div>
Actually, in this case it's quite simple: apply the vertical align to the image. Since it's all in one line, it's really the image you want aligned, not the text.
<!-- moved "vertical-align:middle" style from span to img -->
<div>
<img style="vertical-align:middle" src="https://via.placeholder.com/60x60" alt="A grey image showing text 60 x 60">
<span style="">Works.</span>
</div>
Tested in FF3.
Now you can use flexbox for this type of layout.
.box {
display: flex;
align-items:center;
}
<div class="box">
<img src="https://via.placeholder.com/60x60">
<span style="">Works.</span>
</div>
Here are some simple techniques for vertical-align:
One-line vertical-align:middle
This one is easy: set the line-height of the text element to equal that of the container
<div>
<img style="width:30px; height:30px;">
<span style="line-height:30px;">Doesn't work.</span>
</div>
Multiple-lines vertical-align:bottom
Absolutely position an inner div relative to its container
<div style="position:relative;width:30px;height:60px;">
<div style="position:absolute;bottom:0">This is positioned on the bottom</div>
</div>
Multiple-lines vertical-align:middle
<div style="display:table;width:30px;height:60px;">
<div style="display:table-cell;height:30px;">This is positioned in the middle</div>
</div>
If you must support ancient versions of IE <= 7
In order to get this to work correctly across the board, you'll have to hack the CSS a bit. Luckily, there is an IE bug that works in our favor. Setting top:50% on the container and top:-50% on the inner div, you can achieve the same result. We can combine the two using another feature IE doesn't support: advanced CSS selectors.
<style type="text/css">
#container {
width: 30px;
height: 60px;
position: relative;
}
#wrapper > #container {
display: table;
position: static;
}
#container div {
position: absolute;
top: 50%;
}
#container div div {
position: relative;
top: -50%;
}
#container > div {
display: table-cell;
vertical-align: middle;
position: static;
}
</style>
<div id="wrapper">
<div id="container">
<div><div><p>Works in everything!</p></div></div>
</div>
</div>
Variable container height vertical-align:middle
This solution requires a slightly more modern browser than the other solutions, as it makes use of the transform: translateY property. (http://caniuse.com/#feat=transforms2d)
Applying the following 3 lines of CSS to an element will vertically centre it within its parent regardless of the height of the parent element:
position: relative;
top: 50%;
transform: translateY(-50%);
Change your div into a flex container:
div { display: flex; }
Now there are two methods to center the alignments for all the content:
Method 1:
div { align-items: center; }
DEMO
Method 2:
div * { margin: auto 0; }
DEMO
Try different width and height values on the img and different font size values on the span and you'll see they always remain in the middle of the container.
You have to apply vertical-align: middle to both elements to have it been centered perfectly.
<div>
<img style="vertical-align:middle" src="http://lorempixel.com/60/60/">
<span style="vertical-align:middle">Perfectly centered</span>
</div>
The accepted answer does center the icon around half of the x-height of the text next to it (as defined in the CSS specs). Which might be good enough but can look a little bit off, if the text has ascenders or descenders standing out just at top or bottom:
On the left, the text is not aligned, on the right it is as shown above. A live demo can be found in this article about vertical-align.
Has anyone talked about why vertical-align: top works in the scenario? The image in the question is probably taller than the text and thus defines the top edge of the line box. vertical-align: top on the span element then just positions it at the top of the line box.
The main difference in behavior between vertical-align: middle and top is that the first moves elements relative to the box's baseline (which is placed wherever needed to fulfill all vertical alignments and thus feels rather unpredictable) and the second relative to the outer bounds of the line box (which is more tangible).
The technique used in the accepted answer works only for single-lined text (demo), but not multi-line text (demo) - as noted there.
If anyone needs to vertically center multi-lined text to an image, here are a few ways
(Methods 1 and 2 inspired by this CSS-Tricks article)
Method #1: CSS tables (FIDDLE) (IE8+ (caniuse))
CSS:
div {
display: table;
}
span {
vertical-align: middle;
display: table-cell;
}
Method #2: Pseudo element on container (FIDDLE) (IE8+)
CSS:
div {
height: 200px; /* height of image */
}
div:before {
content: '';
display: inline-block;
height: 100%;
vertical-align: middle;
margin-right: -0.25em; /* Adjusts for spacing */
}
img {
position: absolute;
}
span {
display: inline-block;
vertical-align: middle;
margin-left: 200px; /* width of image */
}
Method #3: Flexbox (FIDDLE) (caniuse)
CSS (The above fiddle contains vendor prefixes):
div {
display: flex;
align-items: center;
}
img {
min-width: 200px; /* width of image */
}
This code works in IE as well as FF:
<div>
<img style="width:auto; height:auto;vertical-align: middle;">
<span>It does work on all browsers</span>
</div>
Because you have to set the line-height to the height of the div for this to work
For the record, alignment "commands" shouldn't work on a SPAN, because it is an in-line tag, not a block-level tag. Things like alignment, margin, padding, etc won't work on an in-line tag because the point of inline is not to disrupt the text flow.
CSS divides HTML tags up into two groups: in-line and block-level. Search "css block vs inline" and a great article shows up...
http://www.webdesignfromscratch.com/html-css/css-block-and-inline/
(Understanding core CSS principles is a key to it not being quite so annoying)
Basically, you'll have to get down to CSS3.
-moz-box-align: center;
-webkit-box-align: center;
Use line-height:30px for the span so that text is align with the image:
<div>
<img style="width:30px; height:30px;">
<span style="line-height:30px;">Doesn't work.</span>
</div>
Another thing you can do is set the text's line-height to the size of the images within the <div>. Then set the images to vertical-align: middle;
That's seriously the easiest way.
Haven't seen a solution with margin in any of these answers yet, so here is my solution to this problem.
This solution only works if you know the width of your image.
The HTML
<div>
<img src="https://placehold.it/80x80">
<span>This is my very long text what should align. This is my very long text what should align.</span>
</div>
The CSS
div {
overflow:hidden;
}
img {
width:80px
margin-right:20px;
display:inline-block;
vertical-align:middle;
}
span {
width:100%;
margin-right:-100px;
padding-right:100px;
display:inline-block;
vertical-align:middle;
box-sizing:border-box;
-moz-box-sizing:border-box;
-webkit-box-sizing:border-box;
}
Write these span properties
span{
display:inline-block;
vertical-align:middle;
}
Use display:inline-block; When you use vertical-align property.Those are assosiated properties
background:url(../images/red_bullet.jpg) left 3px no-repeat;
I generally use 3px in place of top. By increasing/decreasing that value, the image can be changed to the required height.
You can set image as inline element using display property
<div>
<img style="vertical-align: middle; display: inline;" src="https://placehold.it/60x60">
<span style="vertical-align: middle; display: inline;">Works.</span>
</div>
Using flex property in css.
To align text vertically center by using in flex using align-items:center; if you want to align text horizontally center by using in flex using justify-content:center;.
div{
display: flex;
align-items: center;
}
<div>
<img src="http://lorempixel.com/30/30/" alt="small img" />
<span>It works.</span>
</div>
Using table-cell in css.
div{
display: table;
}
div *{
display: table-cell;
vertical-align: middle;
}
<div>
<img src="http://lorempixel.com/30/30/" alt="small img" />
<span>It works.</span>
</div>
On a button in jQuery mobile, for instance, you can tweak it a bit by applying this style to the image:
.btn-image {
vertical-align:middle;
margin:0 0 3px 0;
}
Multiline solution:
http://jsfiddle.net/zH58L/6/
<div style="display:table;width:30px;height:160px;">
<img style="display:table-cell;width:30px;height:60px;padding:50px" src='...' />
<div style="display:table-cell;height:30px;vertical-align:middle">
Multiline text centered vertically
</div>
</div>
<!-- note: img (height + 2x padding) must be equal to root div height -->
Works in all browers and ie9+
It can be confusing, I agree. Try utilizing table features. I use this simple CSS trick to position modals at the center of the webpage. It has large browser support:
<div class="table">
<div class="cell">
<img src="..." alt="..." />
<span>It works now</span>
</div>
</div>
and CSS part:
.table { display: table; }
.cell { display: table-cell; vertical-align: middle; }
Note that you have to style and adjust the size of image and table container to make it work as you desire. Enjoy.
Display flex with align-items: center; is the best way for vertically align the items
div {
display: flex;
align-items: center;
}
<div>
<img src="https://via.placeholder.com/30" alt="small img" />
<span>it works.</span>
</div>
div {
display: flex;
align-items: center;
}
<div>
<img src="http://lorempixel.com/30/30/" alt="small img" />
<span>It works.</span>
</div>
Firstly inline CSS is not recommended at all, it really mess up your HTML.
For aligning image and span, you can simply do vertical-align:middle.
.align-middle {
vertical-align: middle;
}
<div>
<img class="align-middle" src="https://i.stack.imgur.com/ymxaR.png">
<span class="align-middle">I'm in the middle of the image! thanks to CSS! hooray!</span>
</div>
Not sure as to why it doesn't render it on your navigation's browser, but I normally use an snippet like this when trying to display a header with an image and a centered text, hope it helps!
https://output.jsbin.com/jeqorahupo
<hgroup style="display:block; text-align:center; vertical-align:middle; margin:inherit auto; padding:inherit auto; max-height:inherit">
<header style="background:url('http://lorempixel.com/30/30/') center center no-repeat; background-size:auto; display:inner-block; vertical-align:middle; position:relative; position:absolute; top:inherit; left:inherit; display: -webkit-box; display: -webkit-flex;display: -moz-box;display: -ms-flexbox;display: flex;-webkit-flex-align: center;-ms-flex-align: center;-webkit-align-items: center;align-items: center;">
<image src="http://lorempixel.com/60/60/" title="Img title" style="opacity:0.35"></img>
http://lipsum.org</header>
</hgroup>
In 2022 and with nearly 96% unprefixed browser support, I'm surprised no one has suggested the use of a grid layout.
In this JSFiddle, 3 lines are all that are necessary to achieve the OP's objective (but multiple alignments are presented for comparison):
div {
display: grid;
grid-template-columns: min-content max-content;
align-items: center
}
An additional UI nicety would include the optional use of the gap property, which enables modulation of the space between each grid-item within the parent grid container (div).
Advantages of grid layout
Easy vertical AND horizontal alignment of grid-items
Modulation of space between grid-items
Any size image (using min-content) and text length (one line using max-content or wrapped (not shown in fiddle) using min-content) would work - no need to hard-code the image dimensions in the CSS (both usages demonstrated in the demonstrated in JSFiddle)
Modern approach
Disadvantages of grid layout
Older browser support is more challenging
Grid layouts generally require more experienced developers to implement properly - not as simple as block/inline-block display
<!DOCTYPE html>
<html>
<head>
<style>
.block-system-branding-block {
flex: 0 1 40%;
}
#media screen and (min-width: 48em) {
.block-system-branding-block {
flex: 0 1 420px;
margin: 2.5rem 0;
text-align: left;
}
}
.flex-containerrow {
display: flex;
}
.flex-containerrow > div {
justify-content: center;
align-items: center;
}
.flex-containercolumn {
display: flex;
flex-direction: column;
}
.flex-containercolumn > div {
width: 300px;
margin: 10px;
text-align: left;
line-height: 20px;
font-size: 16px;
}
.flex-containercolumn > site-slogan {font-size: 12px;}
.flex-containercolumn > div > span{ font-size: 12px;}
</style>
</head>
<body>
<div id="block-umami-branding" class="block-system block-
system-branding-block">
<div class="flex-containerrow">
<div>
<a href="/" rel="home" class="site-logo">
<img src="https://placehold.it/120x120" alt="Home">
</a>
</div><div class="flex-containerrow"><div class="flex-containercolumn">
<div class="site-name ">
This is my sitename
</div>
<div class="site-slogan "><span>Department of Test | Ministry of Test |
TGoII</span></div>
</div></div>
</div>
</div>
</body>
</html>
You probably want this:
<div>
<img style="width:30px; height:30px;">
<span style="vertical-align:50%; line-height:30px;">Didn't work.</span>
</div>
As others have suggested, try vertical-align on the image:
<div>
<img style="width:30px; height:30px; vertical-align:middle;">
<span>Didn't work.</span>
</div>
CSS isn't annoying. You just don't read the documentation. ;P

How to position content in the bottom center of a layout

Can you please help me to place the buttons in the bottom center of the horizontal Layout see picture below.
Ps: the top vertical layout has a dynamic height.
Here's my HTML code:
<html>
<body>
<div class="container" style="height: 100%">
<div class="v-panel-content v-panel-content-task-search-list-view v-scrollable" tabindex="-1"
style="position: relative; height: 100%; width: 275px; border-radius: 10px; border-style: none;">
//-----------------------Vertical Layout
<div location="loc1"></div>
<div location="loc2" style="margin-left: 8px;"></div>
<div location="loc3"></div>
<div location="loc4"></div>
//-----------------------HorizontalLayout
<div location="buttonLayout"></div>
</div>
</div>
</body>
</html>
The dynamicity of the above <div> won't make a difference if it's positioned to flow with the document (not absolute, or fixed).
Your bottom <div> should have the CSS properties text-align: center; applied to it. As you're probably aware, this centralises inline elements within the <div>
As your buttons may not be inline elements, we need to set them to display: inline-block;. This will position them as text would be positioned within their parent element.
Make sure that they don't have a float property applied to them, or else they will align according to this declaration.
See the below fiddle
.lower {
text-align: center;
}
.button-lower {
display: inline-block;
padding: 5px;
background: green;
}
<div class="lower">
<a class="button-lower" href="#">Vider</a>
<a class="button-lower" href="#">Chercher</a>
</div>

h1 breaks the design in a grid

I have an issue that whenever I add an "H1" tag to the grid like the following:
<div class="box">
<h1>123</h1>
</div>
the grid design breaks, Please check the following example
http://jsfiddle.net/937yhqo1/
Appreciate your help.
Update
as #chipChocolate.py answerd that the vertical align solves the issue, but I want to know the reasons, why just when we add H1 tag(any tag with display block) the grid breaks? how does the display inline-block behave at that moment?
Use vertical-align: top alongwith display: inline-block in .box.
.container {
height: 200px;
background: blue
}
.box {
height: 100px;
display: inline-block;
vertical-align: top;
background-color: red;
width: 50px;
margin: 2px
}
<div class="container">
<div class="box"></div>
<div class="box">
<h1>123</h1>
</div>
</div>

Dropping inline divs to a new line

Sorry, I'm sure this question has been asked before, but if there anyway to do the following:
I have three divs in-line like the diagram shown below, when the browser window is shrunk it automatically drops each div to the next line. I know that I could use the #media command and assign a different css stylesheet if the browser is a certain size, but it would be great if I could make it fluid.
Before:
After:
Thank you!
Wrap the divs in a container element, like....
<div class="wrapper">
<div id="elem1"></div>
<div id="elem2"></div>
<div id="elem3"></div>
</div>
Then make sure .wrapper has a set width, most likely a percentage. If it has a set width and the inline elements are all floated left, once there is no longer room within the .wrapper div, they'll shift to the next line.
Try:
<div class='box'></div>
<div class='box'></div>
<div class='box'></div>
and:
.box {
background: #000;
width: 300px;
height: 300px;
float: left;
}
They should automatically drop when below 900px, see: http://jsfiddle.net/JQFH7/
Elements into it
<div id="wrapper">
<div class="inner"></div>
<div class="inner"></div>
<div class="inner"></div>
<div>
CSS
.inner
{
width: 100px;
height: 100px;
display: inline-block;
background: black;
}
div#wrapper
{
width: 100%;
text-align: center;
}
JSFiddle

CSS, display inline and three divs

I have this HTML code:
<body>
<div id="div0" style="display:inline; background-color:green; width:100%">
<div id="div1" style="display:inline; background-color:aqua;width:33%"> </div>
<div id="div2" style="display:inline; background-color:red;width:33%"> </div>
<div id="div3" style="display:inline; background-color:yellow;width:33%"> </div>
</div>
</body>
I want to fill the page with div1, div2 and div3 but they don't fill the entire width.
What it's happening?
Taken from display declaration:
display: inline means that the element
is displayed inline, inside the
current block on the same line. Only
when it's between two blocks does the
element form an 'anonymous block',
that however has the smallest possible
width.
You cannot give an inline element set width or height dimensions, they will be ignored. An element must have a display type of block to do that. Setting display: block however will not achieve what you want since each element will fill the entire width. float: left will cause them to stack to the left and also forces display: block.
<head>
<style type="text/css">
#wrap {
width:100%;
}
#wrap:after {
/* Prevent wrapper from shrinking height,
see http://www.positioniseverything.net/easyclearing.html */
content: ".";
display: block;
height: 0;
clear: both;
visibility: hidden;
}
#wrap .container {
float: left;
width:33%;
}
</style>
</head>
<body>
<div id="wrap">
<div class="container"> </div>
<div class="container"> </div>
<div class="container"> </div>
</div>
</body>
Mmmmm, semantics
See answer from Phunky for further comments on floating.
Use relative positioning on the outer <div> and float the inner <div>s. Don't use display: inline.
<body>
<div id="div0" style="border: 1px solid red; background-color: green; width: 100%; position: relative;">
<div id="div1" style="background-color: aqua; width: 33.33%; float: left;">a</div>
<div id="div2" style="background-color: red; width: 33.33%; float: left;">b</div>
<div id="div3" style="background-color: yellow; width: 33.33%; float: left;">c</div>
</div>
</body>
display:inline shrink wraps the content. You might want to try float:left instead.
Rory Fitzpatrick more or less has the ideal answer for you, although there is no need to set pos:rel on the #wrapper as it is already a relative block element and will span the full width by default.
When you float a block element it mimics the alignment functionality of display:inline and in an ideal world we would have access to the very useful display:inline-block which would have done exactly what you was expecting it to do.
But one thing you should remember when floating elements is that they will only take up the space they require (this includes margin and padding) unless you set a fixed width.
This is why Rory used width:33%; as that is the best you are ever going to get :)
Ideally this would have been a comment on Rorys post, but i've not got a high enough post count yet.
<body>
<div id="div0" style="float: left; background-color:green; width:100%">
<div id="div1" style="float: left; background-color:aqua;width:33%"> </div>
<div id="div2" style="float: left; background-color:red;width:33%"> </div>
<div id="div3" style="float: left; background-color:yellow;width:33%"> </div>
</div>
</body>
This should work for you. And the reason IIRC is that display: inline does not take % width.
Instead of using float you could use flexbox for a more responsive resizing. Also this forces the elements to remain in a row.
Example:
<head>
<style type="text/css">
#wrap {
width:100%;
display:inline-flex;
}
#wrap:after {
content: ".";
display: block;
height: 0;
clear: both;
visibility: hidden;
display: inline-flex;
flex-direction: row;
}
.container1 {
width:20%;
}
.container2{
width:80%;
}
</style>
</head>
<body>
<div id="wrap">
<div class="container1"> </div>
<div class="container2"> </div>
</div>
The best way to accomplish this, contrary to all the answers given before, can be found referencing the answer to this question:
3 inline-block divs with exactly 33% width not fitting in parent
The quickest and easiest way is not the prettiest to look at (putting your div's on the same line to remove the automatic single white space provided normally), but will work tremendously for what you want. The answer I am referencing list plenty of other way that, in my opinion, are better than any provided before, and address the true problem you are having.
Here is the code working exactly how you'd like, and a link to the fiddle!
<body>
<div id="div0" style="float: left; background-color:green; width: 100%;">
<div id="div1" style="margin: 0px; display: inline-block; background-color:aqua;width:33.33%"> </div><div id="div2" style="margin: 0px; display: inline-block; background-color:red;width:33.33%"> </div><div id="div3" style="margin: 0px; display: inline-block; background-color:yellow;width:33.33%"> </div>
</div>
https://jsfiddle.net/stopitdan/uz1zLvhx/