![]() Lastly, we align the form horizontally and vertically with the same classes of the previous example, “justify-content-center” and “align-items-center”.Īs for the CSS code, I’m not showing it here because I’ve only used it to style the form, not for its alignment. This is because “rows” are already flexbox containers in Bootstrap 4. One important thing to notice here is the fact that we haven’t used the “d-flex” class which we used in the first example. © Bootstrap 4 "Align Center" tutorial by AZMIND.Īs you can see, we also add the class “h-100” to the first two div parents of the form, the “container” and “row” divs. Now let’s see the form’s HTML code and then explain it:Ī tutorial on how to align a "form" vertically and horizontally in Bootstrap 4. We set a height of 100% to these elements with the Bootstrap class “h-100”. They should occupy all the vertical space of the page, so that the form can be placed in the center of this space. To achieve this result, we need all the parent elements of our form, “div-s”, “body” and “html” tags, to have a height of 100%. In the second example we’ll learn how to align a form, so that it always remains in the center of the page, independently from the device or screen size. Example 2: Align a “Form” in the Center of the Page, Full Screen We do it by adding the class “align-items-center” to our “div-wrapper”, to align vertically, in the center, its child div. Lastly, the most important part, the vertical alignment. Next, we add the class “justify-content-center” to our “div-wrapper” to align horizontally, in the center, its child div (with class “div-to-align”), the one that we want to align. By doing this, we enable flex behaviors and create a flexbox container (our “div-wrapper” class), and also transform its direct children elements into flex items, as explained in the Bootstrap documentation here. ![]() First, we add the class “d-flex” to our “div-wrapper”. To align our div we will follow 3 easy steps: The parent div has a fixed height of 200 pixels (set with CSS). So, in a few words, we want to align the div with the class “div-to-align” in the center of its parent div which has the class “div-wrapper”. ![]() The CSS code (file “style.css”, folder “assets/css/”, I’m not showing all the page’s CSS code): The HTML code (file “index.html”, I’m not showing all the page’s code):Ī tutorial on how to align a "div" element vertically and horizontally in Bootstrap 4. Let’s see the code first and explain it after that. We will achieve this with some HTML and CSS code and with some handy classes offered by Bootstrap 4. In this first example we’ll align a “div” element inside its parent “div” which has a fixed height. We’ll see 3 examples where we take a “div” and a “form” and align them in the center, vertically and horizontally, using Bootstrap 4 (current version 4.3.1).Īt the end of the tutorial, you can download all the files as handy templates.Įxample 1: Align a “Div” in the Center of Another “Div”, Fixed Height, Not Full Screen This has continued to be a problem, at least for me, until the advent of the CSS flexbox layout and the flexbox utilities offered in Bootstrap 4.Īnd that’s what we’ll be talking about in today’s tutorial. Well, this has been a very tricky task for years (at least for me) and some developers have also used JavaScript in some situations to obtain the desired result. Centering an HTML element horizontally with CSS, be it a “div” or a “form”, has been always easy for web developers at least for the past 10 years or so.īut what about centering the same element vertically, so that it always remains in the center of the page or in the center of its parent element?
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