<.decimal>

A field for a number that may carry a fraction: an amount, a rate, a quantity someone measures rather than counts. Deliberately not `type="number"`. That element may only hold a valid floating-point number, so a browser given `1200,50` leaves the text on screen, sets the value to the empty string, and offers no way to read what was typed. Which separators it accepts depends on the operating system's locale, the browser's UI language and the element's own `lang` together, so the same person entering the same amount succeeds on one machine and silently submits nothing on another. `inputmode="decimal"` asks for the numeric keypad without handing the element a veto over the value, and where it is not supported the fallback is an ordinary keyboard rather than a lost number. No `pattern` either: a regex admitting both separators and grouping in every locale would raise native constraint validation the host's parser has already been asked to decide, and two authorities that can disagree is worse than one. Use `number/1` for a whole count, where the spinner and `step` earn their keep.