Sometimes, during the design of a web project, we encounter apparent problems, one of which may be the change in the size of the top navigation bar in the specific web project. This incident may occur due to various reasons, and here we will review some of the most important of them.
The first possible cause may be a change in the content of the upper navigation. If the internal content of the upper navigation changes, it is likely that its dimensions might also change. For instance, if you used texts with different lengths in the titles, it might force the navigation bar to adjust for more content, increasing its own height.
Another reason could be the use of different styles for the internal navigation elements. For example, some styles may have been customized only for specific pages, which would cause a change in the shape of the upper navigation on those pages. Ensure that the styles you use are consistently applied across the entire project.
Another factor could be CSS properties like padding, margin, or border, which can disproportionately affect the size of the upper navigation. Check that none of these properties are unnecessarily customized.
A further reason could be improper usage of CSS Grid or Flexbox, which may lead to altering the structure of the web design. Ensure that these techniques are correctly applied in the HTML structure to avoid unexpected changes.
Additionally, there may be issues stemming from JavaScript, which can dynamically change styles in the DOM. Check that scripts work correctly and if necessary, to change sizes, these changes should be managed correctly.
Sample CSS Code for the Upper Navigation
.topnav {
background-color: #333;
overflow: hidden;
}
.topnav a {
float: left;
display: block;
color: #f2f2f2;
text-align: center;
padding: 14px 16px;
text-decoration: none;
}
.topnav a:hover {
background-color: #ddd;
color: black;
}
Line-by-line Explanation of the Code
<.topnav> This class is used to define the overall style of the upper navigation
background-color: #333; Defines the background color of the navigation
overflow: hidden; Used to hide any overflowing content from the navigation
<.topnav a> This block styles the links in the upper navigation
float: left; Positions the links in a floating manner
display: block; Displays the links as block elements
color: #f2f2f2; Defines the text color of the links
text-align: center; Aligns the text inside the links
padding: 14px 16px; Adds internal margins for spacing between text and edges
text-decoration: none; Removes the underline from the link text
<.topnav a:hover> This styles for when the mouse hovers over the link
background-color: #ddd; Defines the background color of the link on hover
color: black; Defines the text color of the link on hover