Bootstrap4 - 2 columns: left scroll, right fixed map - css

Using Bootstrap4 to create a two column layout, the left column should scroll (currently it's not) and the right column should not scroll (currently it does as shown by the scroll bar in the image). The map should always be the height of the window (referred to as the "viewport" in Bootstrap, I think). FYI, the contents of the left column grows with time as the server pushes more hosts into it:
HTML:
<div id="app">
<div class="container-fluid">
<div class="row">
<div class="col-md-2">list of hosts (should scroll)</div>
<div class="col-md-10" id="map">google map (should NOT scroll)</div>
</div>
</div>
</div>
CSS:
.col-md-2 {
border-right: 1px solid black;
min-height: 100vh;
overflow-y: scroll;
padding: 0;
}
Thanks


Here's an example that uses a fixed sidebar: https://jsfiddle.net/Lbn21js8/1/
I added an id selector to the sidebar, and a background color:
<div id="app">
<div class="container-fluid">
<div class="row">
<div id="sidebar" class="col-md-2 bg-light ">list of hosts (should scroll)</div>
<div class="col-md-10 ml-auto" id="map">google map (should NOT scroll)</div>
</div>
</div>
</div>
With this CSS:
#sidebar {
border-right: 1px solid black;
overflow-y: scroll;
padding: 0;
position: fixed;
top: 0;
left: 0;
bottom: 0;
}
The linked jsFiddle appends a new paragraph to the sidebar every 1.5 seconds, so if you wait long enough you'll see the sidebar's scrollbar become active/scrollable.
With this, as long as you constrain the map section to never be bigger than the viewport, you won't see a scrollbar for the page.


I used this CSS and it worked for me:
CSS:
#map {
margin-left:20%;
position:fixed;
}
This will allow the left column col-md-2 to be scrollable and prevent the right column col-md-10 from scrolling. By adding margin-left:20%;, the right column won't overlap the content on the left.

Related

Centering bootstrap panel with rows vertically and horizontally

I am trying to center a bootstrap panel vertically and horizontally. The
structure of the document is as follows:
<body>
<div class="container parent">
<div class="row">
<div class="col-md-4 col-md-offset-4">
<div class="panel panel-default">
<div class="panel-body text-center">A Basic Panel</div>
</div>
</div>
</div>
</div>
</body>
The CSS:
.parent {
position: absolute;
top: 0;
left: 0;
bottom: 0;
right: 0;
margin: auto;
}
JSFiddle
This seems to center the panel horizontally, but not vertically. Any help is appreciated!

I did two changes :
Html
<div class="col-xs-12 col-md-4 col-md-offset-4">
Css(should be declared after bootstrap css stylesheet):
.panel{
margin-top: -25px;
}
.parent {
height: 100vh;
padding-top: 50vh;
}
Why margin-top: -25px ? because in the developers console i saw that .panel css box model is taking 50px in height and its starting from 50 vh height(so it will not be centered and will go below extra 25px) so i subtracted the extra height from .panel to center it correctly.

You can't center a col-md-3 because there are 12 columns total, leaving 9 behind, which you cant split evenly. If you had an even number of columns you were using, you could use col-md-offset-#.

You can center something vertically by using .parent { top: 50% }
The % value can be changed depending where you would like it to appear.
This value is also determined by the percentage of the div size that your element is inside.

How to center vertically and horizontally a div using Bootstrap? [duplicate]

This question already has answers here:
Bootstrap Center Vertical and Horizontal Alignment
(17 answers)
Closed last year.
I have a problem with my CSS. I have a panel form in my index page and I want to move it in the middle of the page vertically and horizontally. But I don't know how to create a CSS for this.
Here's my sample code:
<div class="login_header"></div>
<div class="container" style="text-align: center;">
<div class="col-md-6 col-md-offset-3">
<div class="panel_form panel panel-default">
<div class="panel-content">
<h1>test</h1>
</div>
<div class="panel-footer">
<p>test</p>
</div>
</div>
</div>
</div>
<footer class="footer"></footer>
I have a CSS like this:
.login_header { min-height: 50px; background-color: #f5f5f5; }
.panel_form {
/* I don't have an idea with this */
}
.footer {
position: absolute;
bottom: 0;
width: 100%;
height: 50px;
background-color: #f5f5f5;
}
I am not good enough in CSS that's why I need your help. That's all thanks.. :)

Bootstrap 4:
<div class=" h-100 d-flex justify-content-center align-items-center">
<div>
Items are Centered horizontally and vertically
</div>
</div>
JsFiddle

Some of the other answers on this question use CSS hacks with tables and custom CSS classes. As the poster asked "How to center vertically and horizontally using Bootstrap", here is how to do that using only Bootstrap 4 utility classes:
<div class="d-flex justify-content-md-center align-items-center vh-100">
<p>Your Content</p>
</div>
Something of note is that due to the styling on the parent div, when adding additional elements in the same div, they will appear beside the first one, rather than below it. To fix this, just add an additional div inside the parent to reset the styling.
<div class="d-flex justify-content-md-center align-items-center vh-100">
<div>
<p>Content 1</p>
<p>Content 2</p>
</div>
</div>
This does work with Bootstrap flex, I've found that it works best when placed inside a flex component like this, rather than wrapping the entire row.
<div class="container">
<div class="row">
<div class="col-md-6">
<div class="d-flex justify-content-md-center align-items-center vh-100">
<p>Content 1</p>
</div>
</div>
<div class="col-md-6">
<div class="d-flex justify-content-md-center align-items-center vh-100">
<p>Content 2</p>
</div>
</div>
</div>
</div>
Here is a breakdown of each class:
d-flex: Effectively display: flex, allows the div to grow or shrink depending on the amount of content.
justify-content-md-center: Justifies content in the center of the page, can also be replaced with justify-content-sm-center or justify-content-lg-center to change the breakpoint.
align-items-center: Centers the alignments of all items in a div.
vh-100: Sets the height of the div to 100vh, or 100 "vertical height". This ensures that the div is the correct height to allow for vertical alignment.

I found some of the answers very difficult to implement. However, this question seems to be one of the most basic ones and so here's an answer that someone else like me might find useful.
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="container" style="display: flex; justify-content: center; align-items: center; height: 100vh">
hello world!
</div>

So, check this out; it's pretty cool
HERES A CODE PEN TO SEE IT IN ACTION
html, body 100% width and height;
container with relative or fixed positioning with 100% width and height, if you want to center in viewport. Size doesn't matter if you just want to ceter it within the element.
centered thing needs absolute positioning, a top and left of 50%, then use transform: translate(-50%, -50%);
regardless of its size, it's centered in viewport
CSS
* {
margin: 0;
padding: 0;
box-sizing: border-box;
}
html,
body {
width: 100%;
height: 100%;
}
#outer {
position: relative;
width: 100%;
height: 100%;
background: #BADA55;
}
#outer #container {
background-color: #f3f3f3;
color: #663399;
padding: 15px 25px;
width: 100%;
max-width: 300px;
position: absolute;
transform: translate(-50%, -50%);
left: 50%;
top: 50%;
}
LESS version
* {
margin: 0;
padding: 0;
box-sizing: border-box;
}
html, body {
width: 100%;
height: 100%;
}
#outer {
position: relative;
width: 100%;
height: 100%;
background: #BADA55;
#container {
background-color: #f3f3f3;
color: #663399;
padding: 15px 25px;
width: 100%;
max-width: 300px;
position: absolute;
transform: translate(-50%, -50%);
left: 50%;top: 50%;
}
}

What worked for me is this:
<div class="container h-100">
<div class="d-flex justify-content-md-center align-items-center vh-100">
<p>Your Content</p>
</div>
</div>

Asked and answered here: Twitter Bootstrap - how to center elements horizontally or vertically
But the short of it is:
<div class="center-block">...</div>
Link to the Bootstrap docs: http://getbootstrap.com/css/#helper-classes-center

Brothers check this one it's working...
<head>
<title>Bootstrap Example</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.5.0/css/bootstrap.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.16.0/umd/popper.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.5.0/js/bootstrap.min.js"></script>
</head>
<body>
**<div class="container" style="display: flex; justify-content: center; align-items: center; height: 100vh">
<div class="jumbotron">
hello world!
</div>**
</div
</body>
</html>

While I haven't found a solution to the general problem in pure Bootstrap 5, here is a solution that works with just a little additional CSS. Please test by changing the browser window size, or using the Responsive Mode of your browser, but not both at once, since they don't behave well together.
This example centers a 50% wide and high div, and centers the text inside it.
It works perfectly down to about a 200px by 200px window.
See Code Pen https://codepen.io/david263/pen/eYvOGOB and use Settings > Full screen mode.
<style type="text/css">
/* Required for proper centering */
html, body{
height:100vh;
width:100vw;
}
</style>
<!-- Outer container, full page width and height, red border -->
<div class="container-fluid d-flex justify-content-center align-items-center" style="height:100vh; overflow:hidden; border: 2px solid red">
<!-- Inner row, half the width and height, centered, blue border -->
<div class="row text-center d-flex align-items-center" style="overflow:hidden; width:50vw; height:50vh; border: 1px solid blue">
<!-- Innermost text, wraps automatically, automatically centered -->
<h2>Center This Text (Even if Wrapped) in all Viewport Sizes</h2>
</div> <!-- Inner row -->
</div> <!-- Outer container -->

Give the outer div
display: table;
and the inner div
display: table-cell
Then you can use
vertical-align: center
on the inner div
Read further: Twitter Bootstrap - how to center elements horizontally or vertically

Div not properly wrapping around contents (image) - Includes margin, possible float/Bootstrap issues

How to size/wrap a div container around an image inside It? Where float: right and margin-left: auto are potentially causing issues.
I'm struggling to get a div to be sized by wrapping properly around the image inside it. Please have a look at the example I'm referring to here:
Link to Example
(Might be worth playing around with the window size to help explain my problem)
I'm practicing with Bootstrap for the first time. The red blocks on each side are grid blocks 1 and 12, with the blue, and green sections filling the remaining 10. The big orange rectangles are responsive images that I want to be kept central spaced 20px apart at all times.
Using Chrome's "Inspect Element" (or similar) - If you inspect the orange rectangle on the right hand side, and have a look at the container div (class="container-img-r") - This div is wrapping around the orange image exactly how I wanted (albeit including the invisible border). But I'm not having much luck achieving the same result with the div container for the orange image on the left side (it still fills the blue parent element)
I've played around with different options for float/margins/position but can't seem to crack it.
Here's the CSS I have for the relevent content:
.container-img-l {
/* float:right; ??? Nothing I tried here seemed to make a difference */
}
.container-img-r {
float:left;
}
.item-pos-l {
margin-left:auto;
border-right:10px solid transparent; /* Margins just collapsed when resizing window */
height:323px;
width:510px;
}
.item-pos-r {
float:left;
border-left:10px solid transparent;
height:323px;
width:510px;
}
The reason for me wanting the div to accurately wrap around the responsive images is that I want to overlay some more CSS content over the images, scaling/re-positioning automatically as the window/device size changes (Click here and you'll clearly see where I'm hoping to implement this responsive style).
Maybe there are clashes with the Bootstrap CSS at play but I'm out of ideas.

Your first link doesn't remotely look like the html you want to make responsive. It would be best to learn responsive and fluid (no pixels heights or widths if possible) css before attempting to modify a framework you are unfamiliar with. Also, you have an error in your html - validate it to make sure you've closed all your elements. Also indent and comment all your code and avoid the use of inline styles.
Demo: http://jsbin.com/wazanu/2/
http://jsbin.com/wazanu/2/edit -- edit link
CSS:
body {background:#eee}
.header {padding:20px;}
.portfolio-grid .col-sm-6 {
margin-bottom: 30px
}
.img-wrapper .title {
text-align:center;
}
#media (min-width:768px) {
.img-wrapper {
position: relative;
overflow: hidden;
}
.img-wrapper img {width:100%;}
.img-wrapper .title {
position: absolute;
text-align:left;
bottom: -90px;
padding: 0 20px 20px 20px;
height: 150px;
background: red;
transition: all .5s ease-in-out;
}
.img-wrapper .title h3 {
margin: 0;
height: 60px;
line-height: 60px;
}
.img-wrapper:hover .title {
bottom: 0
}
}
HTML:
<header class="header text-center">
My header
</header>
<div class="container">
<div class="row portfolio-grid">
<div class="col-sm-6">
<div class="img-wrapper">
<img src="http://placekitten.com/g/400/300" class="img-responsive center-block" alt="">
<div class="title">
<h3>Title of Project</h3>
<p>Content about project goes here</p>
</div>
</div>
</div>
<!--/.col-sm-6 -->
<div class="col-sm-6">
<div class="img-wrapper">
<img src="http://placebear.com/g/400/300" class="img-responsive center-block" alt="">
</div>
</div>
<!--/.col-sm-6 -->
<div class="clearfix visible-sm"></div>
<div class="col-sm-6">
<div class="img-wrapper">
<img src="http://placekitten.com/g/400/300" class="img-responsive center-block" alt="">
</div>
</div>
<!--/.col-sm-6 -->
<div class="col-sm-6">
<div class="img-wrapper">
<img src="http://placekitten.com/g/400/300" class="img-responsive center-block" alt="">
</div>
</div>
<!--/.col-sm-6 -->
</div>
<!--/.row-->
</div>
<!--/.container-->

Creating a fixed footer with Bootstrap

I am building an app that uses Bootstrap. I want this app to have a footer. The footer needs to "stick" to the bottom. In other words, if the content is larger than the height of the screen, the footer should still be visible, the content goes under it. If the content takes less than the height of the screen, I still need the footer to stick tothe bottom. I tried using the sticky footer. However, that doesn't work. Currently, I am trying the following:
Here's My Plunker
My HTML looks like this:
<div class="footer">
<div class="container text-center">
<button class="btn btn-warning"><span class="glyphicon glyphicon-filter"></span></button>
<button class="btn btn-warning"><span class="glyphicon glyphicon-th"></span></button>
</div>
</div>
How do I build a footer that permanently sticks to the bottom? I'm basically trying to build an "action bar" that is visible only when the site runs on a phone.
Thank you for your help.

use the following code
.footer {
background-color: #f5f5f5;
bottom: 0;
height: 60px;
position: fixed;
width: 100%;
}

you should change the footer position :
.footer {
background-color: #f5f5f5;
bottom: 0;
height: 60px;
position: fixed; /*change it*/
width: 100%;
}

Bootstrap comes with its nav elements ready to roll as a footer.
Simply create your element and add these classed navbar navbar-default navbar-fixed-bottom.
<footer>
<div class="navbar navbar-default navbar-fixed-bottom" id="footer">
<div class="container">
<p>this is your footer that sticks to the bottom</p>
</div>
</div>
</footer>
You can then expand on this by splitting the containing div into blocks with something like
<div class="row">
<div class="row">
<div class="col-xs-8 col-sm-6">
Level 2: .col-xs-8 .col-sm-6
</div>
<div class="col-xs-4 col-sm-6">
Level 2: .col-xs-4 .col-sm-6
</div>
</div>
</div>
the above would go inside the container div
as shown here http://jsfiddle.net/showcaseimagery/5y14pqgv/

having different kind of backgrounds for a page divided into horizontal sections

I warned you, I can be a little vague
Anyway, what I am after are those pages that fill the whole screen, but if you scroll down and you come to a different section ( some specific content or just a footer), it breaks away from the previous content by having a different background.
Sorry, if I sleep on it, I can maybe come up whith a better explanation and/or an example page.
Does that style have a name and how is it done? If it needs to be responsive?
thanks

Yes. It's simple to do. Setup like so, and customize to your heart's content.
<div id="header" class="container">
<div class="wrapper">
[...]
</div>
</div>
<div id="feature_area" class="container">
<div class="wrapper">
[...]
</div>
</div>
<div id="content" class="container">
<div class="wrapper">
[...]
</div>
</div>
<div id="footer" class="container">
<div class="wrapper">
[...]
</div>
</div>
CSS:
.container {
width: 100%;
text-align: center;
}
.wrapper {
margin: 0px auto;
width: 70%;
text-align: left;
}
The parent (container) <div>s will stretch to 100% page width. The child (wrapper) <div>s will stretch to 70% of their parents (or, you can set this to fixed pixel dimensions and change based upon screen dimensions) and will be centered. You apply decorative backgrounds to the parent .container like:
#header {
background: #ff0000;
}
#footer {
background: #000;
}
#content {
background: url(img/bg_pattern.gif);
}
#feature_area {
background: url(img/hero_feature_img.jpg) top center no-repeat;
}

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