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Summary: a disclosure label should explain its contents
HTML summary is the visible label of a details disclosure. Activating it changes the parent's open state.
Published23 Oct 2026
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Technology
Software, devices and technical concepts, explained clearly.
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Technology
SVG: why the vector logo stays clear at different sizes
SVG describes shapes through structured elements, rather than fixing each point as a pixel. The format is suitable for many characters and schemes when used for a clear purpose.
Published22 Oct 2026
Technology
Sys.argv: command-line arguments start as text
sys.argv contains program arguments, with the initial element describing the script or invocation. A supplied quantity such as 12 starts as text, not an automatically validated number.
Published22 Oct 2026
Technology
Table-layout: fixed does not repair long content
table-layout selects the table sizing algorithm. With fixed and an explicit width, column distribution is not determined by all the content as in automatic layout.
Published23 Oct 2026
Technology
tabular-nums aligns digits by width
The same width of numbers makes it easy to scan numbers in a column.
Published22 Oct 2026
Technology
Tarfile: an archive can contain more than regular files
TAR archives can describe directories, files and links. Extraction therefore involves more than copying independent safe bytes.
Published22 Oct 2026
Technology
TemporaryDirectory: a workspace with a defined lifetime
tempfile.TemporaryDirectory can act as a context manager that cleans up its temporary directory on exit. It suits intermediate conversion files.
Published22 Oct 2026
Technology
Text-align: centring content rather than the box
text-align sets the horizontal alignment of inline-level content within a block. text-align: center can centre text without moving the block within its parent.
Published23 Oct 2026
Technology
Text-decoration-color: the line can have its own colour
text-decoration-color chooses a decoration's colour without necessarily changing the letters. Underlining and text can therefore be styled separately.
Published23 Oct 2026
Technology
Text-decoration-line: choosing which decoration appears
text-decoration-line selects decorations such as underline, overline and line-through. Several types can be combined, while style and thickness are controlled separately.
Published23 Oct 2026
Technology
Text-decoration-style: a wavy line does not check spelling
text-decoration-style sets a decoration's line style, such as solid, double or wavy. It changes how an already selected decoration is drawn.
Published23 Oct 2026
Technology
Text-decoration-thickness: underline thickness is its own setting
text-decoration-thickness sets the thickness of a text decoration. This allows an underline to change without making the whole font heavier.
Published23 Oct 2026