Check out this link to see the CSS dropdown navbar in action
Can someone explain why adding overflow:hidden in .navbar resolves the issue of a white left side and text on the right side? Furthermore, what is the purpose of using the overflow property here when it typically applies to block elements with specified heights?
Note: The overflow property only works for block elements with a specified height.
The reason behind this issue is related to the concept of block formatting context. When the overflow: hidden property is removed, the elements within that container shift to the left due to the presence of child elements with the float property without proper clearing of the float.
To understand more about the behavior of block formatting context, you can check out this answer on Why does overflow hidden stop floating elements escaping their container?.
For additional insights, you may want to explore the explanation provided in this reference: Parent Height doesn't follow their float children.
Initially, by removing overflow:hidden from the navbar, you will notice that the menu items vanish because there is no background defined in .navbar at that point. Additionally, both the a and button tags have color: fff;, which matches the page background color.
So why do we actually need overflow:hidden; in .navbar?
The reason lies in the fact that all child elements within .navbar have the float property applied to them. When elements are floated, they do not occupy any space in the normal document flow. Consequently, if the child elements have no space allocated, the height property of the parent container (.navbar) becomes 0.
To preserve the height property of the parent class when its children are floated, we utilize the overflow: hidden; property.
I trust this explanation proves beneficial!
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