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State of CSS 2026

CSS Usage

How you use CSS.

対応デバイス

Testing environments don't show much change compared to last year, with accessibility testing still not as common as it should be.
どんなデバイスでテストしているか。
Multiple
0%
20%
40%
60%
80%
100%
01
デスクトップ
3,774
02
スマートフォン
2,510
03
タブレット
1,570
04
デスクトップをキーボード操作のみで利用
1,300
05
調査ツール（Axe、Lighthouseなど）
1,054
06
フィーチャーフォン
1,030
07
スクリーンリーダー
799
08
印刷
477
09
PDF Export
306
10
視覚特性シミュレーター（色覚障害など）
262
0%
20%
40%
60%
80%
100%
回答数に占める割合（%）
3,781
77%
10
26%
Percentage of survey respondents who do not generate any CSS code using AI whatsoever.

CSS AI Code Generation

What's fascinating about this chart is that it looks completely different from a similar question asked in the State of AI or State of JS surveys. Comments on this question point to the fact that AI isn't great at CSS just yet. Time will tell if this is just a temporary limitation, or if we will one day have AI so powerful it's even able to fully grasp how CSS grid layouts work.

What proportion of the CSS code you produce is AI-generated?
0%
20%
40%
60%
80%
100%
1
0% AI
980
2
|
941
3
|
562
4
|
206
5
50%
322
6
|
157
7
|
312
8
|
188
9
100% AI
64
0%
20%
40%
60%
80%
100%
回答数に占める割合（%）
3,732
76%
28%
13%
10
💡
このアンケートをTwitterやFacebook、メールで共有すると、コーディングのパフォーマンスが15％向上します。これは科学的に証明されています。

ブラウザの差異

Anchor Positioning and the View Transition API are still the features respondents are refraining from using the most due to browser issues.

It's also interesting to note that Container size queries and Grid still show up in this chart, despite both having the Widely Available Baseline status.

ブラウザの差異が原因で使うのに苦労したCSSの機能はありますか？
Freeform
Multiple
0%
20%
40%
60%
80%
100%
01
02
+1
03
04
Safari issues
+1
05
-3
06
07
08
+1
09
+2
10
0%
20%
40%
60%
80%
100%
回答数に占める割合（%）
632
13%
20
10

Missing Features

While we're still waiting for Mixins to make their way to CSS, browser vendors did address our pleas for Masonry Layout, last year's number two most-requested feature, in the form of the new display: grid-lanes syntax.
What features do you feel are currently missing from CSS altogether?
Freeform
Multiple
0%
20%
40%
60%
80%
100%
1
Mixins
2
3
4
5
Media Query Variables
+5
6
Form Elements Styling
+2
7
Masonry Layout
-5
8
その他の回答
0%
20%
40%
60%
80%
100%
回答数に占める割合（%）
436
9%
10

Favorite New Feature

:has() may still be as awesome as ever, but with many developers having already used it for over a year, it has lost its “best new feature” crown to Anchor Positioning, which gained 4 ranks to take the top spot.
What are your favorite new CSS features that you started using this year?
Freeform
Multiple
0%
20%
40%
60%
80%
100%
01
+4
02
-1
03
-1
04
-1
05
-1
06
+4
07
+2
08
-1
09
-3
10
+3
0%
20%
40%
60%
80%
100%
回答数に占める割合（%）
913
19%
20
10

Pace of Change

If you feel behind because you haven't used every single new CSS feature that's come out this year, don't. As this chart shows, most respondents are in in the middle of their feature adoption curves, having only learned about and tried out some of the features included in the survey.

How well are you generally able to keep up with new CSS features, such as those mentioned in this survey?
0%
20%
40%
60%
80%
100%
1
I haven't learned about or tried out most features
533
2
I've learned about some of the features; but haven't tried them out
936
3
I've learned about and tried out some of the features
1,144
4
I've learned about most of the features and tried out some of them
798
5
I've learned about and tried out most of the features
290
0%
20%
40%
60%
80%
100%
回答数に占める割合（%）
3,701
76%
2.8
3
10

ウェブ技術の現状に満足していますか？

Respondents were relatively happy with the state of web technologies in general, maintaining a 3.8 average on a 5-point scale.
How happy are you with the general state of web technologies?
1
2
3
4
5
2020
2021
2022
2023
2024
2025
2026
1
2
3
4
5
平均
3,737
76%
3.8
4
10

CSSの現状に満足しているか

On the other hand, happiness with CSS specifically shows a clear upwards trend in recent years, which happens to align nicely with the language's own rapid pace of improvement.
How happy are you with the general state of CSS?
1
2
3
4
5
2020
2021
2022
2023
2024
2025
2026
1
2
3
4
5
平均
3,747
76%
4
4
10

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