Why Is My CSS 'left' Attribute Not Centering My Element?

CSS "left" Attribute Not Functioning

In CSS, the "left" property is used to control the horizontal position of an element relative to its containing element. However, it's essential to ensure that the containing element has a defined width, height, and position for the "left" property to work correctly.

Referring to your provided code example, you're attempting to position a child div ("inner") within a parent div ("outher") such that its left edge aligns with the center of the parent div using "left: 50%". However, the code you provided is not aligning the child div correctly.

The Fix:

To position the child div correctly, you need to specify a position other than "static" for the containing div ("outher"). This is because the "static" position is the default value for elements in HTML and does not allow for precise positioning.

Adjusted Code:

#outher {
   width: 1000px;
   height: 1000px;
   background-color: #ccc;
   position: relative; // Add this line
}

#inner {
   width: 400px;
   height: 300px;
   background-color: #090;
   position: absolute; // Add this line
   left: 50%;
}

By setting the "position" property to "absolute" for the child div and "relative" for the containing div, you establish a proper reference point for the "left" property. This ensures that the child div is positioned relative to the containing div, and its left edge aligns with the center of the parent div as intended.

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