Flexbox wrap items on demand? - html

Question

I currently have a model like this
.parent
.child1
.child2
.child3
.child4
The request is: 'parent' is a row that takes full width of the device.
In big screen, there is one row with 4 children.
In smaller screen, there are 2 rows with 2 columns each.
And in the extra small screen there are 1 column with 4 rows.
Is there any way that I can achieve the request using only Flexbox? (because I hate Boostrap so much...)
I tried flex-wrap: wrap for the parent and flex: 1 for the children, but failed :(
Thank you :)

Answer 1

This is a SCSS mixin that does that:
#mixin n-columns($min-width, $gutter, $last-equal:false, $max-cols:5, $selector:'.colItem'){
display: flex;
flex-wrap: wrap;
margin-left: -$gutter;
// margin-top: -$gutter;
position: relative;
top: -$gutter;
> #{$selector} {
flex: 1 0 auto;
margin-left: $gutter;
margin-top: $gutter;
#if $last-equal {
#for $i from 2 through $max-cols {
$screen-width: ($min-width*$i)+($gutter*$i);
$column-width: (100%/$i);
#media( min-width: $screen-width) {
max-width: calc(#{$column-width} - #{$gutter});
}
}
$column-width: (100%/$max-cols);
#media( min-width: $min-width*$max-cols) {
min-width: calc(#{$column-width} - #{$gutter});
}
}
}
}
You use it like so:
.parent{
#include n-columns(200px, 3px, true, 5);
}
You'll understand all the things it can do after you use it with different settings and see the results, it's pretty straightforward.

Answer 2

.container {
display: flex;
}
.box {
flex: 1;
}
#media ( max-width: 800px ) {
.container { flex-wrap: wrap; }
.box { flex: 0 0 50%; box-sizing: border-box; }
}
#media ( max-width: 500px ) {
.box { flex-basis: 100%; }
}
/* non-essential decorative styles */
.box {
height: 50px;
background-color: lightgreen;
border: 1px solid #ccc;
display: flex;
justify-content: center;
align-items: center;
font-size: 1.2em;
}
<div class="container">
<div class="box"><span>1</span></div>
<div class="box"><span>2</span></div>
<div class="box"><span>3</span></div>
<div class="box"><span>4</span></div>
</div>
jsFiddle