A common challenge for responsive forms is how to balance the space and clarity of the form fields. One option is to use placeholder text, which shows the expected input inside the field, but disappears when the user starts typing. However, this can cause confusion and errors, as users may forget what the field is for, or assume that it is already filled. Another option is to use labels, which show the name of the field outside or above it, but this can take up more space and create visual clutter. A better option is to use floating labels, which combine the benefits of both placeholders and labels. Floating labels start as placeholders inside the field, but move up and shrink when the user focuses or enters input. This way, they save space and provide context for the user. To create floating labels, you can use a label element with a position: absolute property, and transform its position and size using CSS and JavaScript.