CSS failing to reach the full width of the container

My navigation tab is currently only occupying half of the width that I need it to. I have tried various solutions found on this site and through Google, but none seem to work as expected. The black background of the navigation should fill up 100% of the width, but it doesn't. Any ideas?

nav ul ul {
display: none;
}

nav ul li:hover > ul {
display: block;
}
nav ul {
background: #1e1d1d; 
background: linear-gradient(top, #1e1d1d 0%, #bbbbbb 100%);  
background: -moz-linear-gradient(top, #1e1d1d 0%, #bbbbbb 100%); 
background: -webkit-linear-gradient(top, #1e1d1d 0%,#bbbbbb 100%); 
box-shadow: 0px 0px 9px rgba(0,0,0,0.15);
padding: 0 20px;
border-radius: 10px;  
list-style: none;
position: relative;
display: inline-table;
}
nav ul:after {
content: ""; clear: both; display: block;
}
nav ul li {
float: left;
}
nav ul li:hover {
background: #f7f7f7;
background: linear-gradient(top, #f7f7f7 0%, #5f6975 40%);
background: -moz-linear-gradient(top, #f7f7f7 0%, #5f6975 40%);
background: -webkit-linear-gradient(top, #f7f7f7 0%,#5f6975 40%);
}
nav ul li:hover a {
color: #ff0000;
}

nav ul li a {
display: block; padding: 25px 40px;
color: #f7f7f7; text-decoration: none;
}
nav ul ul {
background: #f7f7f7; border-radius: 0px; padding: 0;
position: absolute; top: 100%;
}
nav ul ul li {
float: none; 
position: relative;
}
nav ul ul li a {
padding: 15px 40px;
}
nav ul ul li a:hover {
background: #888484;
        color: #ff0000;
}
nav ul ul ul {
position: absolute; left: 100%; top:0;
}
<nav>
<ul>
<li><a href="#">Basin &amp; Sinks</a></li>
<li><a href="#">Showers</a>
<ul>
<li><a href="#">Shower Trays</a></li>
<li><a href="#">Shower Glass</a>
<ul>
<li><a href="#">Frosted</a></li>
<li><a href="#">Clear</a></li>
</ul>
</li>
</ul>
</li>
<li><a href="#">Bathroom Accessories</a>
<ul>
<li><a href="#">Plugs</a></li>
<li><a href="#">Toilet Paper</a></li>
</ul>
</li>
<li><a href="#">Toilets</a></li>
</ul>
</nav>

https://jsfiddle.net/1nzot5rq/1/

I've experimented with different links and tried using properties like width: 100% and max-width: 100%, but haven't been successful so far.

Answer №1

Include the following code in your CSS file to make the navigation menu responsive: https://jsfiddle.net/d8ch5qer/

nav ul ul {
  display: none;
}

nav ul li:hover > ul {
  display: block;
}

nav ul {
  background: #1e1d1d;
  background: linear-gradient(top, #1e1d1d 0%, #bbbbbb 100%);
  background: -moz-linear-gradient(top, #1e1d1d 0%, #bbbbbb 100%);
  background: -webkit-linear-gradient(top, #1e1d1d 0%, #bbbbbb 100%);
  box-shadow: 0px 0px 9px rgba(0, 0, 0, 0.15);
  padding: 0 20px;
  border-radius: 10px;
  list-style: none;
  position: relative;
  display: inline-table;
  width: 100%;
  box-sizing: border-box;
}

nav ul:after {
  content: "";
  clear: both;
  display: block;
}

nav ul li {
  float: left;
}

nav ul li:hover {
  background: #f7f7f7;
  background: linear-gradient(top, #f7f7f7 0%, #5f6975 40%);
  background: -moz-linear-gradient(top, #f7f7f7 0%, #5f6975 40%);
  background: -webkit-linear-gradient(top, #f7f7f7 0%, #5f6975 40%);
}

nav ul li:hover a {
  color: #ff0000;
}

nav ul li a {
  display: block;
  padding: 25px 40px;
  color: #f7f7f7;
  text-decoration: none;
}

nav ul ul {
  background: #f7f7f7;
  border-radius: 0px;
  padding: 0;
  position: absolute;
  top: 100%;
}

nav ul ul li {
  float: none;
  position: relative;
}

nav ul ul li a {
  padding: 15px 40px;
}

nav ul ul li a:hover {
  background: #888484;
  color: #ff0000;
}

nav ul ul ul {
  position: absolute;
  left: 100%;
  top: 0;
}
<nav>
  <ul>
    <li><a href="#">Basin &amp; Sinks</a></li>
    <li><a href="#">Showers</a>
      <ul>
        <li><a href="#">Shower Trays</a></li>
        <li><a href="#">Shower Glass</a>
          <ul>
            <li><a href="#">Frosted</a></li>
            <li><a href="#">Clear</a></li>
          </ul>
        </li>
      </ul>
    </li>
    <li><a href="#">Bathroom Accessories</a>
      <ul>
        <li><a href="#">Plugs</a></li>
        <li><a href="#">Toilet Paper</a></li>
      </ul>
    </li>
    <li><a href="#">Toilets</a></li>
  </ul>
</nav>

Answer №2

Here's a solution:

  nav ul {
   width: 100%;
   display:block;
  }

However, managing columns to fit the entire width can be tricky. One option is to use JavaScript to calculate each width, or you can utilize display: table for the nav ul and display: table-cell for the ul li's

Answer №3

If you're using Chrome, there is a known issue where Chrome adds 40px of padding to <ul> elements:

-webkit-padding-start: 40px;

This extra padding causes the <ul> to extend beyond the defined width.

To fix this problem, there are two solutions:

1. Remove all padding, including browser defaults

https://example.com/12345

Add -webkit-padding-start: 0. Additionally, remove the 20px padding on either side of the <ul>.

CSS:

nav ul {
    background: #1e1d1d; 
    background: linear-gradient(top, #1e1d1d 0%, #bbbbbb 100%);  
    background: -moz-linear-gradient(top, #1e1d1d 0%, #bbbbbb 100%); 
    background: -webkit-linear-gradient(top, #1e1d1d 0%,#bbbbbb 100%); 
    box-shadow: 0px 0px 9px rgba(0,0,0,0.15);
    border-radius: 10px;  
    list-style: none;
    position: relative;
    display: inline-table;
    width: 100%;
}

2. Utilize box-sizing: border-box

This method ensures that the browser calculates all padding and borders within an element's final width:

https://example.com/67890

nav ul {
    background: #1e1d1d; 
    background: linear-gradient(top, #1e1d1d 0%, #bbbbbb 100%);  
    background: -moz-linear-gradient(top, #1e1d1d 0%, #bbbbbb 100%); 
    background: -webkit-linear-gradient(top, #1e1d1d 0%,#bbbbbb 100%); 
    box-shadow: 0px 0px 9px rgba(0,0,0,0.15);
    border-radius: 10px;  
    list-style: none;
    position: relative;
    display: inline-table;
    width: 100%;
    box-sizing: border-box;
}

In both cases, make sure to add width: 100% to nav ul.

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