Before CSS existed, the entire visual web was held together by an invisible 1×1 pixel transparent GIF. Designers stretched it, duplicated it, and embedded it millions of times to build the layouts we take for granted today.
1px is where that story lives. From the spacer GIF era of the late 1990s to the sub-pixel rendering challenges of modern retina displays, the single pixel remains the fundamental unit of everything we see on screen.
Explore the World of 1px
The Spacer GIF Story
How a 43-byte transparent image became the most important file on the early web, powering table-based layouts across millions of sites.
1px Borders in CSS
The retina display problem, hairline rendering techniques, and why a single pixel border is still one of the hardest things in web development.
The PX Unit Explained
A CSS pixel is not a physical pixel. Dive into what PX actually means, the rem vs px debate, and every other meaning of those two letters.
The Power of 1
Why single-character domains command premium value, how "1" leads in every sorted list, and the brands that chose to start with one.
Why 1px.com
Three characters. Universal recognition. A domain that speaks directly to anyone who has ever written a line of HTML or CSS. 1px.com is not just short and memorable — it carries meaning. It references the foundational building block of digital visual media: the pixel.
Whether as a brand for a design tool, a CSS framework, a creative agency, or a technical publication, 1px.com signals precision, craft, and deep web heritage.