562

I would like to increase the width of the ipython notebook in my browser. I have a high-resolution screen, and I would like to expand the cell width/size to make use of this extra space.

Thanks!

5
  • Is there a way apply the new witdth to the output formatting? If I use print(...) to output a matrix or a list, the line break still occures at the same position and therefor the output is not using the added space.
    – Timo
    Commented Sep 19, 2017 at 15:12
  • 1
    Try np.set_printoptions(250)
    – vgoklani
    Commented Sep 19, 2017 at 15:14
  • 3
    Thanks! np.set_printoptions(linewidth=110) works for me.
    – Timo
    Commented Sep 19, 2017 at 15:18
  • 1
    @vgoklani Sorry, but 'np' ? Where does that come from?
    – Brandt
    Commented Oct 31, 2017 at 9:24
  • 1
    @Brandt import numpy as np
    – vgoklani
    Commented Oct 31, 2017 at 12:20

16 Answers 16

1065

If you don't want to change your default settings, and you only want to change the width of the current notebook you're working on, you can enter the following into a cell:

from IPython.display import display, HTML
display(HTML("<style>.container { width:100% !important; }</style>"))
18
  • 35
    Nice. This looks like it only changes the code/markdown cells. Is there a way to also have it do the output cells?
    – dreyco676
    Commented Sep 1, 2016 at 20:29
  • 17
    This solution worked for me ! I did not have to install any lib or package to use it. Commented Sep 26, 2016 at 19:43
  • 3
    @becko according to julia discourse this works: display("text/html", "<style>.container { width:100% !important; }</style>")
    – Liso
    Commented Jul 19, 2018 at 4:38
  • 8
    Holly Molly this has changed my life to a better... Thank you so much!!! Been so tired of looking into that screwed 600px width box while having a 2k 30'' monitor!! Commented Mar 4, 2020 at 15:21
  • 11
    add display(HTML("<style>.output_result { max-width:100% !important; }</style>")) to change the output cells width! Commented Jun 12, 2020 at 12:47
253

That div.cell solution didn't actually work on my IPython, however luckily someone suggested a working solution for new IPythons:

Create a file ~/.ipython/profile_default/static/custom/custom.css (iPython) or ~/.jupyter/custom/custom.css (Jupyter) with content

.container { width:100% !important; }

Then restart iPython/Jupyter notebooks. Note that this will affect all notebooks.

16
  • 10
    These little snippets of information should be posted some place, thanks again!
    – vgoklani
    Commented Oct 30, 2014 at 0:23
  • 15
    Starting IPython 4.1 custom folder location has changed to ~/.jupyter/custom/.
    – Romain
    Commented Jan 24, 2016 at 6:50
  • 8
    I had to restart Jupyter notebook (4.1.0) for it to work. I put the above css in ~/.jupyter/custom/custom.css
    – Paul
    Commented May 12, 2016 at 17:49
  • 12
    100% doesn't look very nice, I changed it to 90%
    – liang
    Commented Mar 30, 2017 at 10:37
  • 2
    If this isn't working after restarting the notebook, try restarting your browser, and still if not, try clearing cookies. That worked for me!
    – aeolus
    Commented Nov 19, 2018 at 20:29
88

To get this to work with jupyter (version 4.0.6) I created ~/.jupyter/custom/custom.css containing:

/* Make the notebook cells take almost all available width */
.container {
    width: 99% !important;
}   

/* Prevent the edit cell highlight box from getting clipped;
 * important so that it also works when cell is in edit mode*/
div.cell.selected {
    border-left-width: 1px !important;
}
5
  • This works in Linux! But where do I need to save it in Windows?
    – crusaderky
    Commented May 24, 2016 at 9:29
  • 10
    Try running jupyter --config-dir, then create custom\custom.css in whatever location that command returns.
    – jvd10
    Commented May 25, 2016 at 15:01
  • @jvd10 this did not work for me. Does custom.css have any other code besides the snippet above? Also how does Jupyter know to use it? Commented Aug 23, 2019 at 17:57
  • 1
    On linux and osx at least, by default jupyter looks for a hidden directory called .jupyter for configuration files including customizations like the above. The above should be the only contents of the custom.css. See here for some more info: jupyter.readthedocs.io/en/latest/projects/…
    – jvd10
    Commented Aug 27, 2019 at 15:32
  • The .container doesn't work with the version i have installed. This worked instead: .jp-Cell { width: 99% !important; }
    – tom1919
    Commented Jul 25, 2023 at 0:05
33

It's time to use jupyterlab

Finally, a much-needed upgrade has come to notebooks. By default, Jupyter-lab uses the full width of your window, just like any other full-fledged native IDE (no tweaking needed).

You can install it either by pip or conda.

# Option 1: using pip
pip install jupyterlab

# Option 2: using conda
conda install -c conda-forge jupyterlab

To launch, just replace noteboook with lab

jupyter lab    # instead of "jupyter notebook"

Here is a screenshot from blog.Jupyter.org

15
  • 6
    JupyterLab is still in beta and has some regressions from the regular notebooks (by design). One notable is is forbidding JS by default and needing extensions for every little JS visualisation Commented Jul 5, 2018 at 12:07
  • 4
    And how can you change the width of a Jupyter Lab cell? Commented Feb 11, 2019 at 22:21
  • 4
    I've struggled for an hour making jupyter lab to work. at first no graphics (pyplot / plotly) was showing. The docs don't mention you must install extensions for that. Tried to install the plotly extension. found out you need nodejs for that. installed both, now I get "Cannot find template: "index.html"" message. At this point I gave up, I'm staying with jupyter notebook. Commented May 21, 2019 at 7:29
  • 1
    Every 6 months I try jupyter lab and it just does not work well.
    – Oren
    Commented Oct 26, 2020 at 2:55
  • 3
    @CiprianTomoiagă JS execution is no longer forbidden in JupyterLab (for quite a while now actually).
    – krassowski
    Commented Apr 19, 2021 at 11:34
29

For notebook 7 you can use:

from IPython.display import display, HTML
display(HTML("<style>:root { --jp-notebook-max-width: 100% !important; }</style>"))
5
  • thans this works -- but if we want to change it permanently , adding code into ~/.jupyter/custom/custom.css, :root { --jp-notebook-max-width: 100% !important; } is not working :/ ...any idea? thanks
    – jjrr
    Commented Nov 14, 2023 at 9:40
  • github.com/jupyter/notebook/discussions/7152
    – jjrr
    Commented Nov 14, 2023 at 15:40
  • Thanks, the most upvoted answer didn't work, this one did. No idea why this isn't the default. Commented Jan 15 at 19:52
  • Thank you, this worked for me in JupyterLab. The most upvoted answer did not. Commented Jan 31 at 8:02
  • The accepted answer stopped working for me in v7, but this worked like a charm. Thanks! Commented Mar 13 at 23:27
27

What I do usually after new installation is to modify the main css file where all visual styles are stored. I use Miniconda but location is similar with others C:\Miniconda3\Lib\site-packages\notebook\static\style\style.min.css

With some screens these resolutions are different and more than 1. To be on the safe side I change all to 98% so if I disconnect from my external screens on my laptop I still have 98% screen width.

Then just replace 1140px with 98% of the screen width.

@media (min-width: 1200px) {
  .container {
    width: 1140px;
  }
}

enter image description here

After editing

@media (min-width: 1200px) {
  .container {
    width: 98%;
  }
}

enter image description here Save and restart your notebook


Update

Recently had to wider Jupyter cells on an environment it is installed, which led me to come back here and remind myself.

If you need to do it in virtual env you installed jupyter on. You can find the css file in this subdir

env/lib/python3.6/site-packages/notebook/static/style/stye.min.css
4
  • 4
    This is awesome! It's simple and accomplishes exactly what is needed.
    – user3092503
    Commented Feb 15, 2018 at 16:38
  • @Gunay /notebook does not exist in the directory for me. Commented Aug 23, 2019 at 17:53
  • Do you know the version of your python (python -V when you activate your environment) and how did you create the virtual env? Did you use venv module on Python/Conda? Commented Aug 24, 2019 at 21:23
  • If I could give you 10 likes, I would. Brilliant!
    – Pythn
    Commented Dec 29, 2020 at 8:35
16

This is the code I ended up using. It stretches input & output cells to the left and right. Note that the input/output number indication will be gone:

from IPython.core.display import display, HTML
display(HTML("<style>.container { width:100% !important; }</style>"))
display(HTML("<style>.output_result { max-width:100% !important; }</style>"))
display(HTML("<style>.prompt { display:none !important; }</style>"))
1
  • 1
    cool! I would only exclude the last line since it makes the cells execution information go away(cells left part, that shows the excecution order and an * when execution is not finished yet) Commented Jun 12, 2020 at 14:56
13

You can set the CSS of a notebook by calling a stylesheet from any cell. As an example, take a look at the 12 Steps to Navier Stokes course.

In particular, creating a file containing

<style>
    div.cell{
        width:100%;
        margin-left:1%;
        margin-right:auto;
    }
</style>

should give you a starting point. However, it may be necessary to also adjust e.g div.text_cell_render to deal with markdown as well as code cells.

If that file is custom.css then add a cell containing:

from IPython.core.display import HTML
def css_styling():
    styles = open("custom.css", "r").read()
    return HTML(styles)
css_styling()

This will apply all the stylings, and, in particular, change the cell width.

2
  • This doens't work in the latest IPython (version > 2). Check this answer: stackoverflow.com/a/24207353/2108548
    – rominf
    Commented Oct 25, 2014 at 10:21
  • Or if you just want to change it for the current notebook in recent ipythons and jupyter, see @jjinking's answer :)
    – nealmcb
    Commented Dec 19, 2015 at 13:54
9

(As of 2018, I would advise trying out JupyterHub/JupyterLab. It uses the full width of the monitor. If this is not an option, maybe since you are using one of the cloud-based Jupyter-as-a-service providers, keep reading)

(Stylish is accused of stealing user data, I have moved on to using Stylus plugin instead)

I recommend using Stylish Browser Plugin. This way you can override css for all notebooks, without adding any code to notebooks. We don't like to change configuration in .ipython/profile_default, since we are running a shared Jupyter server for the whole team and width is a user preference.

I made a style specifically for vertically-oriented high-res screens, that makes cells wider and adds a bit of empty-space in the bottom, so you can position the last cell in the centre of the screen. https://userstyles.org/styles/131230/jupyter-wide You can, of course, modify my css to your liking, if you have a different layout, or you don't want extra empty-space in the end.

Last but not least, Stylish is a great tool to have in your toolset, since you can easily customise other sites/tools to your liking (e.g. Jira, Podio, Slack, etc.)

@media (min-width: 1140px) {
  .container {
    width: 1130px;
  }
}

.end_space {
  height: 800px;
}
2
  • yes, Stylish is great! Can you please add the code needed for the extra space at the bottom ? I always have an empty cell with lots of blank lines in order to have the real last cell centred -_- . Commented Jul 5, 2018 at 12:03
  • 4
    Stylish was taken down yesterday for stealing users' browsing history: gadgets.ndtv.com/internet/news/…
    – stason
    Commented Jul 6, 2018 at 20:43
6

For Chrome users, I recommend Stylebot, which will let you override any CSS on any page, also let you search and install other share custom CSS. However, for our purpose we don't need any advance theme. Open Stylebot, change to Edit CSS. Jupyter captures some keystrokes, so you will not be able to type the code below in. Just copy and paste, or just your editor:

#notebook-container.container {
    width: 90%;
}

Change the width as you like, I find 90% looks nicer than 100%. But it is totally up to your eye.

2
  • Awesome suggestion for jupyter notebook but does so much more!
    – Robino
    Commented Jan 15, 2018 at 21:40
  • @bizi, do I click inside a code cell and then right click, select Stylebot, edit CSS and copy and paste what you have? If so, it did not work for me. I just got fatter margins on both sides. Commented Aug 23, 2019 at 17:16
4

Note that if you do this the old way, you'll now get a deprecation warning. This uses the newer submodule naming:

from IPython.display import HTML

HTML("<style>.container { width:100% !important; }</style>")
1
  • This code will work for the current notebook only. How to do it for all notebooks?
    – Sameh
    Commented Feb 23, 2023 at 8:35
3

I made some modification to @jvd10's solution. The '!important' seems too strong that the container doesn't adapt well when TOC sidebar is displayed. I removed it and added 'min-width' to limit the minimal width.

Here is my .juyputer/custom/custom.css:

/* Make the notebook cells take almost all available width and limit minimal width to 1110px */
.container {
    width: 99%;
    min-width: 1110px;
}   

/* Prevent the edit cell highlight box from getting clipped;
 * important so that it also works when cell is in edit mode*/
div.cell.selected {
    border-left-width: 1px;
}
3

2024 Jupyter Notebook v.7

  1. get your config location, in terminal type: jupyter --paths

example result:

config: /Users/USERNAME/.jupyter

  1. create "custom" folder: mkdir -pv ~/.jupyter/custom/

  2. create "custom.css" file: touch ~/.jupyter/custom/custom.css

  3. open "custom" folder: open ~/.jupyter/custom/

  4. write this line to the "custom.css" file: .jp-WindowedPanel-outer {padding:0 !important;}

  5. Refresh your jupyter browser tab: CMD+R


"~" and "/Users/USERNAME/" are usually interchangeable

1

I tried everything and nothing worked for me, I ended up using displaying my data frame as HTML as follows

from IPython.display import HTML    
HTML (pd.to_html())
0

For Firefox/Chrome users, a nice way to achieve 100% width is to use a custom TamperMonkey script.

The benefits are

  1. configure this once in your browser, no need to modify the server configuration.
  2. works with multiple jupyter servers.
  3. TamperMonkey is trusted, maintained, and stable.
  4. Lots of additional customization is possible via javascript.

This script works for me https://gist.githubusercontent.com/mrk-andreev/2a9c2538fad0b687c27e192d5948834f/raw/6aa1148573dc20a22fca126e56e3b03f4abf281b/jpn_tmonkey.js

0

adding to answers by @jdv10 and @gerenuk

The best option is to add and tweak the custom.css file. Below I am sharing my CSS file contents which I use to squeeze out the maximum screen area in a Jupyter Notebook.

Since it targets the vanilla CSS codes of the rendered page, it is supposed to work for all types of language used for coding on the Notebook.

/* Notebook styling */

body, p, div.rendered_html { 
    color: #93a1a1;
    font-family: 'PT Serif', Georgia, Times, 'Times New Roman', serif;
    font-size: 11pt;
}

body { background-color: #eee8d5 !important; }

/* the following controls aspects which are around the cells */
#notebook { 
    background-color: #073642 !important;
    box-shadow: inset 20px 36px 20px -35px black !important;
    margin: 1px !important;
    padding: 1px !important;
}
#notebook-container {
    padding: 2px !important;
}

/* Make the notebook cells take almost all available width */
.container {
    width:99.5% !important;
    /*margin:.5% !important;*/
    /*color: #93a1a1 !important;*/
    color: black !important;
    background-color: lightblue !important;
}



/* Cell output */

.rendered_html pre, .rendered_html code {
    color: inherit !important;
    background-color: inherit !important;
}

.rendered_html table, .rendered_html td, .rendered_html th {
    border: 1px solid #586e75 !important;
}

div.cell {
    width:100% !important;
    margin: 5px !important;
    /* margin-left:2px !important; */
    /* margin-right:2px !important; */
    padding: 2px !important;
    /* the following overrides the background color of the input area */
    /* background-color: yellow !important;  */
    /* border-color: black !important; */
    
}

/* Prevent the edit cell highlight box from getting clipped;  * important so that it also works when cell is in edit mode*/
div.cell.selected {
    border-left-width: 5px !important;
    border-right-width: 1px !important;
    border-top-width: 2px !important;
    border-bottom-width: 2px !important;
    border-color: red !important;
}
/*this is for the area to the left of the editor or input area*/

div.run_this_cell {
    width: auto !important;
    color: green !important;
    padding: 0 !important;  
    padding-top: 5px !important;
    padding-left: 5px !important;
    font-weight: bold !important;
    font: 2em sans-serif;
}

div.input_area { 
    border-color: green !important; 
    background-color: #ffffdd !important; 
}

.prompt { 
    line-height: 1em !important;
}
div.prompt {
    min-width: auto;
    background-color: white;
}

div.input_prompt { 
    color: #268bd2 !important;
    color: #000000 !important;
    font-weight: bold !important;
    border: 1px solid #ff9900 !important;
    background-color: greenyellow;
    padding-right: 0px !important;
    text-align: center !important;
    width: auto !important;
    font-size: 10px !important;
}
div.output_area {
    color: #000000 !important;
    background-color: #e2e2ff !important;
    font-size: 0.9em !important;
}


/* Syntax highlighting */
.cm-s-ipython span.cm-comment { 
    /*color: #6c71c4 !important;*/
    color: midnightblue !important;
    color: rgb(100, 100, 170) !important;
    font-style: italic !important;
}

.cm-s-ipython span.cm-string { 
    color: rgb(100, 20, 29) !important;
}

Not the answer you're looking for? Browse other questions tagged or ask your own question.