We can reuse the techniques from the previous demo to create a folder tree widget, which has similar hide/show behavior. For example: The code "f00c" is preceded by a backslash, which is required to escape the Unicode character. They don't fully replicate these but are just an exercise to imitate them with just css. Let’s dissect line 1 as an example. See the Pen Checkbox Trickery: Folder Tree by Will Boyd (@lonekorean) on CodePen. 3 min read. styling checkboxes css tricks. Find the style section with checkboxes /* Check-boxes */ and remove it OR if you want to keep the styles, rename the checkbox … 100 FREE HTML5 CSS3 Registration/Sign-in Forms, Periodic Table of HTML Tags [Infographics]. You can also link to another Pen here, and we'll pull the CSS from that Pen and include it. Touch Friendly Radio Buttons . We’re using a combination of the :checked pseudo-class and the + adjacent sibling selector to say “when the checkbox is checked, find the