


Why do I get horizontal scrollbar issues when using Flex layout? How to solve the problem that data cannot be displayed in full?
Apr 05, 2025 pm 05:24 PMAnalysis and solution to the problem of horizontal scroll bars caused by nesting Flex layout
When using Flex layout for multi-layer nesting, you often encounter horizontal scroll bar problems, and even if you scroll to the leftmost, the data cannot be fully displayed. This article will analyze the root cause of the problem and provide solutions through code examples.
Code examples and problem analysis
The following code shows a scenario where horizontal scrollbar problems occur:
<div class="container"> <div class="cmp-main"> <div class="cmp-core"> <div class="process-core"> <div class="item-wrap"> <div class="item">head</div> </div> <div class="item-wrap"> <div class="item-condition"> <div class="condition"> <div class="item-wrap"> <div class="item">Data 1</div> <div class="item">Data 2</div> <div class="item">Data 3</div> <div class="item">Data 4</div> <div class="item">Data 5</div> </div> </div> </div> </div> </div> </div> </div> </div>
.container { margin: 80px; width: auto; } .cmp-main { display: flex; overflow: auto; flex-direction: column; align-items: center; position: relative; width: 100%; } .cmp-core { background-color: #f5f5f7; position: relative; display: flex; flex-direction: column; align-items: center; } .process-core { display: flex; flex-direction: column; align-items: center; } .item-wrap { display: flex; flex-direction: column; justify-content: center; flex-wrap: nowrap; } .item { width: 230px; margin-top: 5px; cursor: pointer; border: 1px solid white; background-color: white; border-radius: 0 0 6px 6px; } .item-condition { position: relative; display: flex; flex-direction: column; align-items: center; } .condition { position: relative; display: flex; } .condition .item-wrap { position: relative; display: flex; flex-direction: row; } .condition .item-wrap .item { position: relative; display: flex; width: 500px; height: 100px; border: 1px solid red; }
The problem is that multi-layer nested display: flex
results in unnecessary width calculations and limitations. .condition .item-wrap
's width is determined by the total width of its child element .item
, and the width of .item
is limited by its parent element, which ultimately leads to the appearance of horizontal scroll bars.
Solution
To solve this problem, we need to remove the excess display: flex
and set the element width reasonably:
Remove excess
display: flex
:.cmp-main
,.cmp-core
,.process-core
,.item-wrap
,.item-condition
display: flex
attributes of these elements are mostly redundant, and removing them can simplify the layout.Fix
.item
element width: Useflex: 0 0 500px;
instead ofwidth: 500px;
to ensure that the width of the.item
element is fixed to 500px to prevent its width from being affected by the parent element.Control the scroll bar position: add
overflow: auto;
to the.condition
element so that the scroll bar appears only in the area containing the data.Center the head: Use
text-align: center;
center the head content.
Modified CSS code:
.container { margin: 80px; width: auto; } .cmp-main { flex-direction: column; align-items: center; position: relative; width: 100%; } .cmp-core { background-color: #f5f5f7; position: relative; } .process-core { } .item-wrap { justify-content: center; } .item { width: 230px; margin-top: 5px; cursor: pointer; border: 1px solid white; background-color: white; border-radius: 0 0 6px 6px; } .item-condition { position: relative; } .condition { position: relative; overflow: auto; } /* Add overflow: auto here */ .condition .item-wrap { display: flex; } .condition .item-wrap .item { position: relative; display: flex; flex: 0 0 500px; height: 100px; border: 1px solid red; } .process-core > .item-wrap:first-child { text-align: center; } /* Center the header */
Through the above modifications, the horizontal scroll bar problem caused by nesting of Flex layouts can be effectively solved and the data can be fully displayed. The key is to understand the width of the Flex layout and avoid unnecessary nesting and style conflicts.
The above is the detailed content of Why do I get horizontal scrollbar issues when using Flex layout? How to solve the problem that data cannot be displayed in full?. For more information, please follow other related articles on the PHP Chinese website!

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