CSS page has white border on the right
CSS White Margin on the Right Side of the Page
In web design, you often encounter white margins on the right side of the page. This may be caused by factors such as the box model, floats, and positioning. In this article, we will explain in detail how to use CSS to resolve the white margin issue.
1. Box Model
The box model is an important concept in CSS that defines the size and margins of elements. When the width of an element is set to 100%, if the margins and padding of the box model are not taken into account, a white edge may appear on the right side of the page. We can solve this problem by setting the margins and padding of the box model.
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Box Model Example</title>
<style>
.box {
width: 100%;
background-color: #f0f0f0;
padding: 20px;
margin: 0;
}
</style>
</head>
<body>
<div class="box">
<p>geek-docs.com</p>
</div>
</body>
</html>
Output:
In the example above, we set a box with a width of 100% and added 20px padding to it. This ensures that the element’s content doesn’t touch the edge, thus preventing a white border on the right side of the page.
2. Float
Float is a common layout technique in CSS, but if used incorrectly, it can cause a white margin on the right side of the page. When an element is floated, surrounding elements rearrange, potentially causing white space on the right side. We can fix this by clearing the float.
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Float Example</title>
<style>
.float-left {
float: left;
width: 50%;
background-color: #f0f0f0;
}
.clear {
clear: both;
}
</style>
</head>
<body>
<div class="float-left">
<p>geek-docs.com</p>
</div>
<div class="clear"></div>
</body>
</html>
Output:
In the example above, we set a left-floating element and then add an element after it that clears the float. This ensures that there is no white margin on the right side of the page.
3. Positioning
Positioning is another commonly used layout method in CSS, but if used incorrectly, it can also cause a white border on the right side of the page. When an element uses absolute positioning, if the positioning of its parent element is not set correctly, it may cause a blank space on the right. We can solve this problem by setting the positioning of the parent element.
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Position Example</title>
<style>
.parent {
position: relative;
}
.child {
position: absolute;
right: 0;
background-color: #f0f0f0;
}
</style>
</head>
<body>
<div class="parent">
<div class="child">
<p>geek-docs.com</p>
</div>
</div>
</body>
</html>
Output:
In the above example, we set a parent element’s positioning to relative, and set the child element to absolute positioning and right-align. This ensures that the child element does not extend beyond the parent element’s bounds, thus preventing a white margin on the right side of the page.
Through the above example, we can see how to resolve the white margin on the right side of the page by setting the box model, clearing floats, and using positioning correctly. In real-world projects, we can choose the appropriate method to solve this problem based on the specific situation and achieve a perfect page layout.