HTML/CSS Why is my HTML and CSS nav bar pushing down other content?

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The discussion revolves around creating a navigation bar using HTML and CSS, specifically addressing an issue where a dropdown menu pushes other content down instead of overlaying it. The user seeks assistance to ensure that the dropdown appears over existing content. Participants suggest posting code for better assistance and recommend using CSS properties to control the layout. Key suggestions include avoiding fixed height values for divs, using absolute positioning for the dropdown, and ensuring the dropdown menu is visible without affecting surrounding elements. The user successfully resolves the initial issue but encounters a new problem where the dropdown disappears when hovering over it due to content underneath. Further advice is provided to adjust CSS properties to maintain the dropdown visibility. The discussion emphasizes the importance of proper CSS techniques for creating effective dropdown menus.
Dave Ritche
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Please help..
I've created a nav bar using list tag in html.when i place pointer on it,the list appears but pushes other contents down leaving space.i don't want it.
I want the list to be appeared on other contents i mean over them.
Thanks in advance!
 
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It's easier to help if you post your code.
 
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Okay thanks i try..
 
Dave Ritche said:
Okay thanks i try..
Click on the + sign to create a block to insert your code. It will help if you use indentation on the code also.
 
Borg said:
It's easier to help if you post your code.
okay!
I have Uploaded the picture of my webpage so you can see the drop-down list menu is pushing the divs and other contents down.I want it to be appeared on divs and other contents..
nav.jpg
 
<!doctype html>
<html>
<head>
<title>creating nav bar</title>
<link rel="stylesheet" href="css/nav_bar.css">
<link rel="icon" href="images/glogo.ico">
</head>
<body>
<div class="logo">
<header>
<div class="banner">
<a href="#" title="Home"><img src="images/banner.jpg"></a>
</div>

</header>
</div>


<div class="nav_main">
<div class="sub">
<ul>
<li><a href="#">HISTORY</a>
<ul>
<li><a href="#">ZAMAN</a></li>
<li><a href="#">ZAMAN</a></li>
<li><a href="#">ZAMAN</a></li>
<li><a href="#">ZAMAN</a></li>
</ul>
</li>
<li><a href="#">THE PRINCIPAL</a>
<ul>
<li><a href="#">JOHN</a></li>
<li><a href="#">JOHN</a></li>
<li><a href="#">COURSES</a></li>
<li><a href="#">COURSES</a></li>
</ul>

</li>
<li><a href="#">FACULTY</a>
<ul>
<li><a href="#">COURSES</a></li>
<li><a href="#">COURSES</a></li>
<li><a href="#">COURSES</a></li>
<li><a href="#">COURSES</a></li>
</ul>

</li>
<li><a href="#">GET ADMISSION</a>
<ul>


<li><a href="#">COURSES</a></li>
<li><a href="#">COURSES</a></li>
<li><a href="#">COURSES</a></li>
<li><a href="#">COURSES</a></li>

</ul>
</li>
<li><a href="#">FORUMS</a>
<ul>
<li><a href="#">COURSES</a></li>
<li><a href="#">COURSES</a></li>
<li><a href="#">COURSES</a></li>
<li><a href="#">COURSES</a></li>


</ul>
</li>

<ul>
<div class="section1">
<section>

<aside>

</aside>

<article class="mainart">
<img class="parapic" src="images/college1.jpg"/>
<p class="homepara">
This is the video of mine having fun with my friends in hostel.People say that the precious time in your life is the University Time.You have the freedom to do anything you want but being in limits.
We also enjoy this life.At times,we go outside to chill.We have everything we could wish to have in our life.We have great teachers to discuss our subjects.
</p>
</article>
</section>
</div>
</div>

</div>
</body>
</html>
 
.nav_main{width:1200px;background-color:white;
margin:auto;
height:1000px;
}
body{background-color:gray;}
*{
padding:0px;
margin:0px;

}

.sub{height:40px;background-color:black;}
.sub ul{display:block;}
.sub ul li{width:237.5px;
float:left;
line-height:40px;
text-align:center;
font-size:20px;
list-style-type:none;
border:1px solid white;

}
.sub ul li a{text-decoration:none;color:white;
display:block;
background-color:black;

}
.sub ul li a:hover{background-color:#81e865;display:block;color:black;text-decoration:underline;}
.sub ul li ul li{display:none;}
.sub ul li:hover ul li{display:block;}

.section1{width:1200px;height:1000px;}
section{background-color:#daddda;width:1200px;float:left;}

.banner{width:100%;height:97px;}
img{width:100%;height:97px;}
.parapic {height:500px;width:1200px;}
.mainart{height:1000px;width:1200px;background-color:white;}
.homepara{padding:1%;font-size:17px;text-align:justify;margin:0px;color:#3f433e;}

THIS IS THE CSS FILE..
 
Now,it must be easier to figure out what's the problem and what is the solution..:woot::woot::woot::woot::woot:
 
  • #10
1.Your nav_main has its height defined up to 1000px.

2. Make your popup "visible".
 
Last edited:
  • #11
Silicon Waffle said:
1.Your nav_main has its height defined up to 1000px.

2. Make your popup "visible".
thanks for your reply.
do you have any source/tutorial?
can you please tell me about that as i don't have any knowledge related to css?
i thank you in advance..
 
  • #12
Silicon Waffle said:
1.Your nav_main has its height defined up to 1000px.

2. Make your popup "visible".
And nav_main is the DIV tag ..it's not the nav itself..
 
  • #13
Okay, your problem is reproduced here
And this is a fix.
Don't add fixed values of width and height for div's, they just make it hard for you to scale your site components. If fixed values are preferred then table would be better fitted.
 
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  • #14
Okay thank you very much for replying.
The Problem is solved and the drop-down list does not push the other contents down but I'm having another problem.
I have added a paragraph after the nav menu and the drop-down list is working just perfectly but when I hover the pointer over the drop-down list-item,the list vanishes due to the paragraph beneath it...
What is the problem and how can i fix it?
I'm really baffled with it,please,can you help me solve this problem?
 
  • #15
Here is the drop-down list but the list disappears due to the paragraph beneath it..
ab.jpg
 
  • #16
Please post your html and css files that cause such an issue.
I don't see it in this live demo.
 
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  • #17
Silicon Waffle said:
Please post your html and css files that cause such an issue.
I don't see it in this live demo.
*{
padding:0px;
margin:0px;

}
body{background-color:white;}
.mainnav{height:40px;background-color:black;position:absolute;}

.mainnav li{float:left;line-height:40px;list-style-type:none;width:266.5px;margin:auto;position:relative;}

.mainnav li a{color:white;display:block;text-align:center;font-size:17px;text-decoration:none;}
.mainnav ul li a:hover{background-color:#4daf32;display:block;}
.mainnav ul li ul li{display:none;absolute;}
.mainnav ul li ul li a{display:block;}
.mainnav ul li:hover ul li {display:block;background-color:#1318db;height:40px;}

section{position:absolute;top:40px;overflow:hidden;}this is the Css file
 
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  • #18
Silicon Waffle said:
Please post your html and css files that cause such an issue.
I don't see it in this live demo.
<!doctype html>
<html>
<head>

<title>nav</title>
<link rel="stylesheet" href="navcss.css">
</head>
<body>

<nav class="mainnav">
<ul>
<li><a href="#">FACULTY</a>
<ul>
<li><a href="#">DEPARTMENTS</a></li>
<li><a href="#">DEPARTMENTS</a></li>
</ul></li>
<li><a href="#">DEPARTMENTS</a></li>
<li><a href="#">FESTIVALS</a></li>
<li><a href="#">SOCIETIES</a></li>
<li><a href="#">ENVIRONMENT</a></li>
<li><a href="#">THE DESIGNER</a></li>

</ul>

</nav>
<section>
<p class="homepara">
This is the video of mine having fun with my friends in hostel.People say that the precious time in your life is the University Time.You have the freedom to do anything you want but being in limits.
We also enjoy this life.At times,we go outside to chill.We have everything we could wish to have in our life.We have great teachers to discuss our subjects.
</p>
</section>

</body> </html>
here is the HTML file...
 
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  • #19
Thanks for sharing your files,
A fix is demo'ed here.
 
  • #20
Thanaks for your reply.
Thank you very much..
 
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