Regular bootstrap version below with kittens.
Bootstrap no gutter between columns.
Bootstrap css class no gutters with source code and live preview.
All breakpoints extra small small medium large and.
The problem in your code is you have used the blue class right in the divs with col class.
Now here s our code for the no gutters class.
Columns have horizontal padding to create the gutters between individual columns however you can remove the margin from rows and padding from columns by using no gutters on the row.
The following image shows the highlighted gutter space and space between columns on bootstrap 4 12 column grid system.
So background colors for two adjacent columns touch each other.
I came up with a handy no gutters class which has some pretty basic css that you apply to your row tag holding your columns.
To make the grid responsive there are five grid breakpoints one for each responsive breakpoint.
That padding is offset in rows for the first and last column via negative margin on rows.
To remove the gutter space all you need to do is add the no gutter class beside row in your html markup it s that simple.
I think you have misunderstood about the gutters.
You can copy our examples and paste them into your project.
To make the grid responsive there are five grid breakpoints one for each responsive breakpoint.
You need to do this the other way.
For example three equal columns would use three col sm 4.
You should leave that div with only the col class.
Grid columns are created by specifying the number of 12 available columns you wish to span.
You can even modify gutter width by reducing 15px width of gutter space between each columns.
Columns have horizontal padding to create the gutters between individual columns however you can remove the margin from rows and padding from columns with no gutters on the row.
The root problem is that columns in bootstrap 3 and 4 use padding instead of margin.
I found a solution that fit our problem and will most likely work for most people trying to space columns and maintain the same gutter widths as the rest of the grid system.
Recently i had a need to have a default grid in bootstrap but also on the homepage i needed to have 4 boxes that butted right up against each other.
All breakpoints extra small small medium large and extra large.
Columns create gutters gaps between column content via padding.
Bootstrap 3 and 4 both already have 30px gutters between columns.