New answers tagged html
Many special characters have specific meaning and usage. You can learn about the basic ones.
Unicode characters can be used however you'd like. Other than symbols with specific historical meanings, there aren't any hard and fast rules for using them in design. Heck, the Unicode Consortium has been adding very un-mathematic symbols for some time now (ie. http://www.unicode.org/emoji/charts/emoji-candidates.html). I would say it's a safe bet to use ...
My approach would be similar to Cosmic's. I would prefer the additional option of the select box fading in once the box is checked. Below is how it would look with selects disabled until a box is checked: adds a lot of information that won't be used. So I'd follow this pattern but hide the select until the box is checked. Didn't want to do a duplicate ...
There are two questions to ask yourself: Is adding sugar/milk an up charge, or in any way an action that should only be chosen of the user is very certain? How often will users select this option? If sugar/milk are sensitive actions, or something the user won't choose frequently, it is your best option to make the user explicitly say they want to add ...
You could use a button group, like this one:
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