How do I divide blocks in my page with flexbox? - html

Question

I'm facing this problem where I want to have a header, sidebar and content with flexbox. I can't get to a solution to divide these 3 childs. I've been trying to use flex-grow and flex-direction:row but I'm having a problem.
Image of the website
How I want it to be
<style>
.parent {
* {
box-sizing: border-box;
margin: 0;
padding: 0;
}
height: 100vh;
border: 20px solid black;
display: flex;
flex-direction: column;
}
.header {
width: 200px;
height: 200px;
background: cornflowerblue;
}
.side {
width: 200px;
height: 200px;
background: rgb(219, 133, 133);
}
.content {
width: 200px;
height: 200px;
background: rgb(115, 202, 180);
}
.text {
display: flex;
flex-direction: row;
justify-content: center;
align-items: center;
height: 190px;
color: #fff;
}
</style>
<div class="parent">
<div class="header">
<h2 class="text">Header</h2>
</div>
<div class="side">
<h2 class="text">Side</h2>
</div>
<div class="content">
<h2 class="text">Content</h2>
</div>
</div>

Answer 1

You need to create two containers, one for all your elements and one for your header and content.
<div class="parent"> <!-- Container 1 -->
<div class="side">
<h2 class="text">Side</h2>
</div>
<div class="container"> <!-- Container 2 -->
<div class="header">
<h2 class="text">Header</h2>
</div>
<div class="content">
<h2 class="text">Content</h2>
</div>
</div>
</div>
Then, you can treat each container as a separate flex-box. the parent will have a flex-direction: row; and the container will have flex-direction: column;.
You also want to set values in percentages, not absolute values as you have right now (200px, 20rem..).
.parent {
box-sizing: border-box;
margin: 0;
padding: 0;
height: 100vh;
border: 20px solid black;
display: flex;
flex-direction: row;
}
.header {
height: 30%;
background: cornflowerblue;
}
.side {
width: 30%;
height: 100%;
background: rgb(219, 133, 133);
}
.content {
height: 70%;
background: rgb(115, 202, 180);
}
.text {
display: flex;
flex-direction: row;
justify-content: center;
align-items: center;
height: 190px;
color: #fff;
}
.container {
display: flex;
flex-direction: column;
width: 70%;
height: 100%;
}
JSFiddle
Images to illustrate the separation:

Answer 2

You have to wrap your header & content section inside another div. Something like this below example. However, The best way to achieve this layout is using a CSS grid. Here is the complete CSS grid guide
.parent {
display: flex;
height: 100vh;
background: #000;
padding: 5px;
margin: 0;
}
.side {
border: 1px solid #000;
width: 30vw;
display: flex;
justify-content: center;
align-items: center;
background: #fff;
margin-right: 5px;
}
.main-body {
border: 1px solid #000;
width: 70vw;
}
.header,
.content {
display: flex;
justify-content: center;
background: #fff;
}
.header {
height: 25vh;
margin-bottom: 5px;
}
.content {
align-items:center;
height: 70vh;
}
<div class="parent">
<div class="side">
<h2 class="text">Side</h2>
</div>
<div class="main-body">
<div class="header">
<h2 class="text">Header</h2>
</div>
<div class="content">
<h2 class="text">Content</h2>
</div>
</div>
</div>

Answer 3

I don't think that you deeply understand how flexbox work. You should read more about it. I advice you to read a book called CSS-in Depth. You can download it online from a website called Z-lib. Try to understand the code that I posted for you.
<style>
* {
box-sizing: border-box;
margin: 0;
padding: 0;
}
.parent {
height: 100vh;
border: 20px solid black;
display: flex;
background: pink;
}
.main {
display: flex;
backgound-color: green;
flex-direction: column;
flex: 2
}
.header {
background: cornflowerblue;
}
.side {
flex: 1;
background: rgb(219, 133, 133);
}
.content {
background: rgb(115, 202, 180);
flex: 1
}
.text {
display: flex;
flex-direction: row;
justify-content: center;
align-items: center;
height: 190px;
color: #fff;
}
</style>
<div class="parent">
<div class="side">
<h2 class="text">Side</h2>
</div>
<div class="main">
<div class="header">
<h2 class="text">Header</h2>
</div>
<div class="content">
<h2 class="text">Content</h2>
</div>
</div>
</div>