I've come up with an innovative concept for an expandable panel:
- The default state of the panel is hidden
- Clicking a button exposes the panel
- As the panel emerges, it smoothly expands upwards from the bottom of its parent at a consistent pace, creating the illusion that it was sandwiched between its parent and the element below while sliding into view
- The height of the panel adjusts dynamically based on its content.
I've been experimenting with this idea and I'm close to achieving the desired functionality:
#page {
display:flex;
flex-direction:column;
height: 100vh;
border: 3px solid red;
}
#main {
border: 3px solid green;
flex: 1 1;
position: relative;
overflow: hidden;
}
... (CSS code continues)
<script>
function myFunction() {
var x = document.getElementById("slideup");
if (x.classList.contains("hide")) {
x.classList.remove("hide");
} else {
x.classList.add("hide");
}
}
</script>Check out my implementation here!
An issue with the current setup arises when the "sliding panel" is fully concealed, where using the tab key to focus on the input at the panel's bottom causes unexpected scrolling of the "main" div.
How can I tweak my code to achieve the desired effect without encountering this odd tab-scrolling behavior?