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Inherit padding width without position absolute? Is it possible?

Not sure, but I am currently not able to figure out. I'm trying to center the inner div (blue transparent one) from the parent (with the red background) inside the background. As an example, they're technically in each other perfectly at the first example in the snippet.
At the second example however I've added padding: 5px; to both of them to the red and blue one. To the blue one because I wanted to inherit the width some how.
https://jsfiddle.net/L8enbcy3/
.box-1-1 {
width: 50px;
height: 50px;
background: red;
position: relative;
display: block;
}
.box-1-2 {
width: 50px;
height: 50px;
background: #0000ffb0;
position: relative;
}
.box1 {
width: 50px;
height: 50px;
background: red;
padding: 5px;
position: relative;
display: block;
}
.box2 {
width: 50px;
height: 50px;
background: #0000ffb0;
padding: 5px;
}
<div class="box-1-1">
<div class="box-1-2"></div>
</div>
<pre>
</pre>
<div class="box1">
<div class="box2"></div>
</div>
What I'm trying is to get "box2" centered into "box1" like example 1 but with its padding, so that's covered by blue. without having to position: absolute it, if possible. What I'm thinking I have to do is to create and invisibile box absolute it, "center it with top: 0 and left: 0 when the parent has position: relative. Then as I mentioned with it being absolute it would go to the corners of the parents padding too and then in the absolute box, I would create a relative one with display: table and put in all the content.
My question now though is, is there another way to do that?

Solution 1: transform: translate()
You could use transform: translate() with variables to achieve what you want, without weird margins (next solution). Here's some MDN about translate().
:root {
--padding: 5px;
}
.box1 {
height: 50px;
width: 50px;
background-color: red;
padding: var(--padding);
}
.box2 {
height: calc(50px + var(--padding)*2);
width: calc(50px + var(--padding)*2);
background-color: #0000ffb0;
transform: translate(calc(0px - var(--padding)), calc(0px - var(--padding)))
}
<div class="box1">
<div class="box2"></div>
</div>
As you can see, the box is brought up and left with translate, and the height is lengthened by adding the needed padding to it. Thisachieves the desired cover effect.
Solution 2: Positive padding, negative margin
You could also use positive paddings and negative margins. Info below code snippet.
:root {
--padding: 5px;
}
.box1 {
height: 50px;
width: 50px;
background-color: red;
padding: var(--padding);
position: relative;
display: block;
}
.box2 {
height: 50px;
width: 50px;
background-color: #0000ffb0;
padding: var(--padding);
margin: calc(0px - var(--padding));
}
<div class="box1">
<div class="box2"></div>
</div>
What's happening here is following the CSS box model, found on MDN and w3schools. We're simply pushing out with margin and sucking in with padding.
Then, as per request in the comments, --padding is a CSS variable that stores the amount of padding that you want.
Hope I helped!
Cheers, Bobbay

You can add a negative margin if you insist on keeping the padding in place.
.box-1-1 {
width: 50px;
height: 50px;
background: red;
position: relative;
display: block;
}
.box-1-2 {
width: 50px;
height: 50px;
background: #0000ffb0;
position: relative;
}
.box1 {
width: 50px;
height: 50px;
background: red;
padding: 5px;
position: relative;
display: block;
}
.box2 {
width: 50px;
height: 50px;
background: #0000ffb0;
padding: 5px;
margin: -5px;
}
<div class="box-1-1">
<div class="box-1-2"></div>
</div>
<pre>
</pre>
<div class="box1">
<div class="box2"></div>
</div>

To center box2 within box1 without absolute position, you can use following css:
.box1 {
display: flex;
align-items: center;
justify-content: center;
}

Edit: example 2 illustrate your need. just remove padding from both boxes and settop: 0; and 'left: 0' with position: relative on box 2. I hope this is the required solution
to center box 2 you need to make its dimension less than box 1. consider the extra pixels added with padding. so the inner box width and height should be 10px less than the outer box.
Example:
.box1 {
width: 50px;
height: 50px;
background: red;
padding: 5px;
position: relative;
display: block;
}
.box2 {
width: 40px;
height: 40px;
background: #0000ffb0;
padding: 5px;
}
.box1-1 {
border: 2px solid yellow;
width: 50px;
height: 50px;
background: red;
position: relative;
display: block;
}
.box2-2 {
position:relative;
top: 0px;
left: 0px;
width: 50px;
height: 50px;
background: #0000ffb0;
}
<div class="box1">
<div class="box2"></div>
</div>
<br>
<div class="box1-1">
<div class="box2-2"></div>
</div>

CSS - Empty colored container relative to size of parent container

I've got a header on my webpage that changes height based on the viewport (eg. 15vh) and has a min-height of 50px.
I'd like to make a colored square within this header that is always exactly 50% of the height of the header regardless of the user's viewport. There will be no content in the colored box. It is for style purposes only. I know that I can't use height: 15%; as there is no content in the container and, as a result, nothing will be displayed. I can't define the box in terms of viewport units because the header isn't always 15% of the height of the viewport (due to the min-height assignment).
Is there any way to accomplish this with CSS?
Here's my setup:
html,
body {
padding: 0;
margin: 0;
}
img {
max-width: 100%;
height: auto;
}
.header {
position: relative;
background-color: grey;
border-bottom: 1px solid #CCC;
min-height: 50px;
}
.responsivecontainer {
float: left;
max-width: 20vw;
min-height: 50px;
display: flex;
}
.logo {
margin: auto 0;
}
.clearfix:after {
content: ".";
display: block;
height: 0;
clear: both;
visibility: hidden;
}
.box {
float: left;
height: 50%;
background-color: black;
}
.clearfix {
display: inline-block;
}
/* Hides from IE-mac \*/
* html .clearfix {
height: 1%;
}
.clearfix {
display: block;
}
/* End hide from IE-mac */
/* #end */
<div class="header clearfix">
<div class="responsivecontainer">
<div class="logo">
<img src="http://www.bluebean.ca/logo1.jpg">
</div>
</div>
<div class="box">
<img src="http://www.bluebean.ca/grey.jpg">
</div>
</div>

You can do this with absolute positioning. Like this :
html,
body {
padding: 0;
margin: 0;
}
img {
max-width: 100%;
height: auto;
}
.header {
position: relative;
background-color: grey;
border-bottom: 1px solid #CCC;
min-height: 50px;
position: relative;
}
.responsivecontainer {
float: left;
max-width: 20vw;
min-height: 50px;
display: flex;
}
.logo {
margin: auto 0;
z-index:10;
}
.clearfix:after {
content: ".";
display: block;
height: 0;
clear: both;
visibility: hidden;
}
.box {
position:absolute;
top:0;
left:0;
height: 50%;
background-color: black;
width: 100%;
}
<div class="header clearfix">
<div class="box"></div>
<div class="responsivecontainer">
<div class="logo">
<img src="http://www.bluebean.ca/logo1.jpg">
</div>
</div>
</div>
You will also need to set z-index value greater than that of box to keep box below elements in header.

Inline divs are not lining up in a row

It's my understanding that simply adding display:inline to divs with a relative position will line them up (left to right), somewhat like float:left. I've tried both approaches but they haven't worked.
Below is an example of my last attempt, using inline displaying. I want all three segments to line up from left to right, but they're displaying just like unstyled divs.
function showProfile() {
var profile = document.getElementById('userprofile');
profile.style.opacity = 0.8;
var profileImage = document.getElementById('userimage');
profileImage.style.opacity = 0.8;
}
.profile {
top: 68px;
background-color: #424755;
color: #dddddd;
width: 100%;
min-height: 50px;
opacity: 0;
position: fixed;
font: 16px"Tahoma";
}
.miniProfileImage {
opacity: 0;
width: 100px;
height: 100px;
}
.miniBioSegment {
display: inline;
margin-right: 5px;
width: 33%;
}
<div class="profile" id="userprofile">
<div class="miniBioSegment">
<img class="miniProfileImage" id="userimage" src="http://dummyimage.com/100x100/000088/ffffff.png&text=Profile+image">
</div>
<div id="miniBio" class="miniBioSegment">
This is basic information about this person that you clicked.
</div>
<div id="miniQuote" class="miniBioSegment">
This is a tag line from the person that you clicked.
</div>
</div>
<button onclick="showProfile()">View Profile</button>

You should use inline-block instead of inline for more control. I used a width of 33%-2px because the browser rounds the div's size up therefore leading to overflowing. Your 5px margins weren't helping with the sum either.
function showProfile() {
var profile = document.getElementById('userprofile');
profile.style.opacity = 0.8;
var profileImage = document.getElementById('userimage');
profileImage.style.opacity = 0.8;
}
.profile {
top: 68px;
background-color: #424755;
color: #dddddd;
width: 100%;
min-height: 50px;
opacity: 0;
position: fixed;
font: 16px"Tahoma";
}
.miniProfileImage {
opacity: 0;
width: 100px;
height: 100px;
display:inline-block;
}
.miniBioSegment{
display: inline-block;
width: calc(33% - 2px);
vertical-align:middle;
}
<div class="profile" id="userprofile">
<div class="miniBioSegment">
<img class="miniProfileImage" id="userimage" src="http://dummyimage.com/100x100/000088/ffffff.png&text=Profile+image">
</div>
<div id="miniBio" class="miniBioSegment">
This is basic information about this person that you clicked.
</div>
<div id="miniQuote" class="miniBioSegment">
This is a tag line from the person that you clicked.
</div>
</div>
<button onclick="showProfile()">View Profile</button>

CSS should target the ID's and use float:left. See example
.profile {
top: 68px;
background-color: #424755;
color: #dddddd;
width: 100%;
min-height: 50px;
position: fixed;
font: 16px"Tahoma";
}
.miniProfileImage {
float:left;
max-width: 33%;
height: 100px;
}
#miniBio {
float:left;
margin-right: 5px;
width: 33%;
}
#miniQuote {
float:left;
margin-right: 5px;
width: 33%;
}
<div class="profile" id="userprofile">
<div class="miniBioSegment">
<img class="miniProfileImage" id="userimage" src="http://dummyimage.com/100x100/000088/ffffff.png&text=Profile+image">
</div>
<div id="miniBio" class="miniBioSegment">
This is basic information about this person that you clicked.
</div>
<div id="miniQuote" class="miniBioSegment">
This is a tag line from the person that you clicked.
</div>
</div>

I'm asking myself, why do you have position:absolute;?
To make it work, I have just added display: flex; justify-content: space-between; to the .profileclass.
Remove the position, and try adding the last two lines.
See example here: http://sandbox.clickadelic.de/demos/lineup.html

With the divs set to display: inline; they will only line up horizontally if the total length of the divs does not exceed the container's width.
And width, height of inline elements is ignored, you should use display: inline-block; instead. The wrapping behavior is the same as above.
Also browser renders whitespace among inline* elements, which is about 4px, see How to remove the space between inline-block elements? for more details.
In your example, there are 3 divs, if you want them to be equal width, you can do:
.profile {
font-size: 0; /*remove whitespace*/
background: silver;
}
.miniBioSegment {
font-size: 16px; /*reset font-size*/
display: inline-block;
vertical-align: top; /*vertical alignment*/
width: 33.3333%;
}
However, the image object in the first div is set to 100px, I think you would prefer that div to be the same width too, and each one takes 50% of the rest space for other two divs. Examples:
1. Inline block
jsFiddle
.profile {
font-size: 0;
background: silver;
}
.miniBioSegment {
font-size: 16px;
display: inline-block;
vertical-align: top;
border: 1px dotted red;
box-sizing: border-box;
width: 100px;
}
#miniBio, #miniQuote {
width: calc((100% - 100px) / 2);
}
.miniProfileImage {
width: 100px;
height: 100px;
display: block;
}
2. Float
jsFiddle
.profile {
background: silver;
}
.profile:after {
content: "";
display: table;
clear: both;
}
.miniBioSegment {
float: left;
border: 1px dotted red;
box-sizing: border-box;
width: 100px;
}
#miniBio, #miniQuote {
width: calc((100% - 100px) / 2);
}
.miniProfileImage {
width: 100px;
height: 100px;
display: block;
}
3. CSS table
jsFiddle
.profile {
background: silver;
display: table;
border-collapse: collapse;
width: 100%;
}
.miniBioSegment {
display: table-cell;
vertical-align: top;
border: 1px dotted red;
}
#miniBio, #miniQuote {
width: 50%;
}
.miniProfileImage {
width: 100px;
height: 100px;
display: block;
}
4. Flexbox
jsFiddle
.profile {
background: silver;
display: flex;
}
.miniBioSegment {
border: 1px dotted red;
}
#miniBio, #miniQuote {
flex: 1;
}
.miniProfileImage {
width: 100px;
height: 100px;
display: block;
}

Centering CSS Boxes(Html and Css)

I am trying to center these boxes in the middle of the screen both horizontally and vertically. Another question is how can I make it where it re-sizes automatically when I scale my page?
/*-------------------------
Simple reset
--------------------------*/
*{
margin:0;
padding:0;
}
/*-------------------------
General Styles
--------------------------*/
/*----------------------------
Color Themes
-----------------------------*/
.nav-colors{
position: relative;
background: white;
height: 200px;
width: 60%;
margin: 0 auto;
padding: 20px;
overflow: auto;
}
.home-link{
background-color:#00c08b;
width: 15%;
height: 80px;
display: inline-block;
margin-left: 10%;
}
.portfolio-link{
background-color:#ea5080;
width: 15%;
height: 80px;
display: inline-block;
}
.social-link{
background-color:#53bfe2;
width: 15%;
height: 80px;
display: inline-block;
}
.contact-link{
background-color:#f8c54d;
width: 15%;
height: 80px;
display: inline-block;
}
.blog-link{
background-color:#df6dc2;
width: 15%;
height: 80px;
display: inline-block;
}
<!DOCTYPE html>
<html>
<head>
<title>Neiko Anglin | Front-End Develper </title>
<!-- Our CSS stylesheet file -->
<link rel="stylesheet" href="css/styles.css" />
<!-- Font Awesome Stylesheet -->
<link rel="stylesheet" href="font-awesome/css/font-awesome.css" />
</head>
<body>
<div class="nav-colors">
<div class="home-link">
</div>
<div class="portfolio-link">
</div>
<div class="social-link">
</div>
<div class="contact-link">
</div>
<div class="blog-link">
</div>
</div>
</body>
</html>

You can use absolute positioning on the container to center vertically and horizontally:
/*-------------------------
Simple reset
--------------------------*/
* {
margin:0;
padding:0;
}
/*-------------------------
General Styles
--------------------------*/
/*----------------------------
Color Themes
-----------------------------*/
.nav-colors {
position: absolute;
background: white;
height: 84px;
width: 60%;
margin: auto;
padding: 20px;
overflow: auto;
top:0;
right:0;
bottom:0;
left:0;
}
.home-link {
background-color:#00c08b;
width: 15%;
height: 80px;
display: inline-block;
margin-left: 10%;
}
.portfolio-link {
background-color:#ea5080;
width: 15%;
height: 80px;
display: inline-block;
}
.social-link {
background-color:#53bfe2;
width: 15%;
height: 80px;
display: inline-block;
}
.contact-link {
background-color:#f8c54d;
width: 15%;
height: 80px;
display: inline-block;
}
.blog-link {
background-color:#df6dc2;
width: 15%;
height: 80px;
display: inline-block;
}
<div class="nav-colors">
<div class="home-link"></div>
<div class="portfolio-link"></div>
<div class="social-link"></div>
<div class="contact-link"></div>
<div class="blog-link"></div>
</div>

To align vertically you need a wrapper class with position absolute in CSS. Search for vertical center which will fetch you lots of results.
To resize boxes along with screen resize - is responsive template. I could suggest you to use Twitter Bootstrap which takes care of your dimensions.

Change your .nav-color class to
.nav-colors{
position: fixed;
background: white;
height: 80px;
width:60%;
margin: -60px 0 0 0;
padding: 20px;
overflow: auto;
top:50%;
left:20%;
}
/*-------------------------
Simple reset
--------------------------*/
* {
margin: 0;
padding: 0;
}
/*-------------------------
General Styles
--------------------------*/
/*----------------------------
Color Themes
-----------------------------*/
.nav-colors {
position: fixed;
background: white;
height: 80px;
width: 60%;
margin: -60px 0 0 0;
padding: 20px;
overflow: auto;
top: 50%;
left: 20%;
}
.home-link {
background-color: #00c08b;
width: 15%;
height: 80px;
display: inline-block;
margin-left: 10%;
}
.portfolio-link {
background-color: #ea5080;
width: 15%;
height: 80px;
display: inline-block;
}
.social-link {
background-color: #53bfe2;
width: 15%;
height: 80px;
display: inline-block;
}
.contact-link {
background-color: #f8c54d;
width: 15%;
height: 80px;
display: inline-block;
}
.blog-link {
background-color: #df6dc2;
width: 15%;
height: 80px;
display: inline-block;
}
<div class="nav-colors">
<div class="home-link">
</div>
<div class="portfolio-link">
</div>
<div class="social-link">
</div>
<div class="contact-link">
</div>
<div class="blog-link">
</div>
</div>

You just have to add some properties to your .nav-colors:
.nav-colors{
position: relative;
background: white;
height: 200px;
width: 60%;
margin: 0 auto;
padding: 20px;
overflow: auto;
line-height: 200px;
text-align: center;
}
And add vertical-align: middle; to elements you want to center vertically.

First the explanation, then some code.
Vertical centering is a classic css issue. The vh unit has come in very handy for this recently. Coupled with margin (and maybe calc) its now a solvable thing.
Centering it horizontally is simple enough, and you have that figured out. Just have a width and set margin: 0 auto and you are good to go.
With Vertical Centering the key thing to remember is you are centering your element, so half is over the middle, half is under the middle. With that we can make margin: calc(50vh-40px) auto 0 for your 80px high element and presto, it's in the middle vertically.
One step further:
Like horizontal centering, you seem to already have the dynamic width down by using %.
For a dynamic vertical size we can again turn to vh. The nice thing is this saves us the css calc function. Just subtract half the height from the 50vh margin and you'll get your margin. So for height: 20vh the margin is margin: 40vh auto 0
Here is a JsFiddle
and here is some code:
CSS:
*{
margin: 0;
padding: 0;
}
html, body{
width: 100vw;
height: 100vh;
}
.nav-colors{
width: 80%;
height: 20vh;
margin: calc(40vh) auto 0;
}
.nav-colors div{
width: 18%;
margin: 0 0 0 1%;
height: 100%;
display: inline-block;
}
.home-link{background-color:#00c08b;}
.portfolio-link{background-color:#ea5080;}
.social-link{background-color:#53bfe2;}
.contact-link{background-color:#f8c54d;}
.blog-link{background-color:#df6dc2;}
HTML:
<div class="nav-colors">
<div class="home-link"></div>
<div class="portfolio-link"></div>
<div class="social-link"></div>
<div class="contact-link"></div>
<div class="blog-link"></div>
</div>
enjoy.

Loading an Image in `<div>` overrides html text

I'm writing an html page that should have the following behavior:
When loaded it contains an empty <div> with a link inside it.
Once pressed the link runs the script StartTrial.js which is supposed to load an image from a directory, visualize it, and give some instructions on what to do.
However, as you can see, once the image is loaded it covers the instructions. This is cause the instructions are written in a <div> that has a margin of 30px from the container <div> with its size before loading the image. How can I fix my code so that the text is always shown with a 30px margin from the bottom of the image?
Here are my code snippets:
Html
<div id="container">
Start Trial
<img class="displays" id="t1_img" src="./images/immi.jpg">
</div>
<div class="instruction" id="instr_1">
<p><b>Instruction:</b><p>
<p>Some text here.</p>
</div>
CSS
#container {
position: relative;
background: gray;
width: 300px;
height: 300px;
margin: 30px;
}
.displays {
position: absolute;
display: none;
top: 0px;
left: 0px;
}
JavaScript
function StartTrial() {
$('#startTrial').hide();
$('#t1_img').show();
$('#instr_1').show();
}

Change your css to use min-height and min-width
#container {
position: relative;
background: gray;
min-width: 300px;
min-height: 300px;
margin: 30px;
}
and remove the absolute positioning, as there is no real need for it.
.displays {
display: none;
top: 0px;
left: 0px;
}
Your image is larger than the container and hence it is overlapping the instructions.

No need to over-engineer it, you can have a css only solution or a simple JS one as follows:
CSS only solution
HTML:
<input type="checkbox" id="startCheckbox" class="start-checkbox"/>
<div id="container" class="container">
<label for="startCheckbox" class="start-trial center">Start Trial</label>
<div class="instruction center" id="instr_1">
<p><b>Instruction:</b></p>
<p>Some text here.</p>
</div>
</div>
CSS:
.center {
position: absolute;
top:0; right:0; bottom:0; left:0;
margin: auto;
}
.container {
border: 1px solid #ccc;
width: 400px;
height: 400px;
position: relative;
}
.container .instruction {
border: 1px dashed #333;
background: rgba(255,238,221,.9);
width: 250px;
height: 250px;
padding: 25px;
text-align: center;
display: none;
}
.container .start-trial {
position: absolute;
height: 20px;
width: 80px;
text-decoration: underline;
cursor: pointer;
}
.container .start-checkbox {
display: none;
}
.start-checkbox {
display: none;
}
.start-checkbox:checked ~ .container .start-trial {
display: none;
}
.start-checkbox:checked ~ .container .instruction {
display: block;
}
.start-checkbox:checked ~ .container {
background: url(http://www.ceritaspros.com/dev/images/dogs/FunnyPuppies/funny-puppies-sleeping-400x400.jpg);
}
Fiddle: http://jsfiddle.net/qobbkh6f/5/
CSS+JS Solution
HTML:
<div id="container" class="container">
Start Trial
<div class="instruction center" id="instr_1">
<p><b>Instruction:</b></p>
<p>Some text here.</p>
</div>
</div>
CSS:
.center {
position: absolute;
top:0; right:0; bottom:0; left:0;
margin: auto;
}
.container {
border: 1px solid #ccc;
width: 400px;
height: 400px;
position: relative;
}
.container .instruction {
border: 1px dashed #333;
background: rgba(255,238,221,.9);
width: 250px;
height: 250px;
padding: 25px;
text-align: center;
display: none;
}
.container.clicked {
background: url(http://www.ceritaspros.com/dev/images/dogs/FunnyPuppies/funny-puppies-sleeping-400x400.jpg);
}
.container.clicked .start-trial {
display: none;
}
.container.clicked .instruction {
display: block;
}
.copntainer.clicked .instruction {
display: block;
}
.container .start-trial {
position: absolute;
height: 20px;
width: 80px;
}
JS:
$("#container").on("click", "#startTrial", function(e) {
e.preventDefault();
$("#container").addClass("clicked");
});
Fiddle: http://jsfiddle.net/qobbkh6f/3/

Try this and let me know if it helps
HTML
<div id="container">
Start Trial
<img class="displays" id="t1_img" src="./images/immi.jpg">
</div>
<div class="instruction" id="instr_1">
<p><b>Instruction:</b><p>
<p>Some text here.</p>
</div>
CSS
#container {
position: relative;
background: grey;
width: 300px;
height: 300px;
margin: 30px;
overflow:hidden
}
.displays {
position: absolute;
top: 0px;
left: 0px;
max-height:100%;
}
Javascript
function StartTrial() {
$('#startTrial').hide();
$('#t1_img').show();
$('#instr_1').show();
}
http://jsfiddle.net/5jx3dn44/

Don't use absolute positioning on your image.
The whole concept of absolute positioning is to make an element overlap the other elements on the page. If you don't want something to overlap other elements then don't use it.
Also don't give a size to your container. It's not the container that's 300x300 and grey - it's your start trial block. If the container is invisible and flexible then it will look good with the image in it when you remove the start trial block. I forget how hide() works but just change to display:none if it doesn't actually remove the element from the layout.