About This HTML Issue
The value px for a width property is incorrect, it should include both the value and the units, like 10px, or just 0 if it’s zero width. Using only the units without the value is incorrect.
Example of Incorrect CSS
<style>
.example {
width: 300; /* This is missing the unit */
}
.example2 {
width: px; /* This is missing the value */
}
</style>Corrected Example of CSS
Make sure to include the unit (like px, em, %, etc.) when specifying the width:
<style>
.example {
width: 300px; /* Correctly includes 'px' unit */
}
</style>Conclusion
Always ensure to provide proper units when specifying dimensions in CSS. Common units are:
-
px(pixels) -
em(relative to the font size of the element) -
%(percentage of the parent element’s width)
Learn more:
Last reviewed: August 02, 2024
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