Float labels are problematic
After writing Placeholders are Problematic some people suggested the float label pattern.
The float label pattern works by having the label start off inside the input (like a placeholder does). But
onfocus or when the user starts typing, the label moves outside the input above the field.
While this is better than supplanting labels with placeholders, this seductive, novel and space-saving technique is problematic for a number of reasons:
1. There is no space for a hint
Floating labels start inside the text box leaving no space for an additional hint.
2. They are hard-to-read
Floating labels typically have small text, so that as it floats, it takes up a small amount of space. But small text is hard-to-read.
3. They need space to move into
Floating labels needs space to move into. If label text is friendly (see previous point), there would be no saved space anyway—just more white space.
Alternatively, we could create space as the label moves into position. But this makes the page judder, creating a disorientating experience as the user starts typing.
4. The animation is problematic
Animation, even if it's done well, could be distracting and disorientating, particularly for low confidence or visually impaired users. And, when zooming in, the label may disappear off screen.
5. They have poor contrast
Like placeholder text, floating labels have low contrast to differentiate it but low contrast text is hard-to-read.
Depending on the design, when the label floats outside of the field, its colour will need to change. Otherwise the text will be lost against the background colour.
6. They may be mistaken for a value
People may skip the field thinking it's completed already. When they submit, they will see an error which needs fixing. This is frustrating and time consuming.
7. They are inconsistently located
Radio buttons, checkboxes and select boxes have static labels and legends. Where as text boxes have floating labels. This creates an inconsistent experience.
When looking at a text box, for example, the user has to look inside the control. For a select box they have to look outside of it.
8. The label may get cropped
If the floating label is longer than the size of the field, it will be cut off by the field. We should design for content, we shouldn't make content fit the design.
9. It ignores the standards
We know placeholders are problematic anyway. However, if we're going to put text inside a text box, it should be a hint, not a label.
Forms are not a source of entertainment. The floating label won't make users enjoy using forms. Users don't care. They just want the outcome.
Static labels and legends positioned outside the field create familiar and consistent experiences. Two qualities often found in well-designed interfaces.
There are better and more productive techniques for improving form design. Let's spend time and energy on those instead.
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