Images overflow horizontally when margin is enabled

[logikwright]

After correcting cmargin typo to margin, images overflow horizontally inside the article layout.

the issue appears to come from:

img {
    width: 100%;
}

combined with the universal selector margins:

* {
    margin: 10px;
}

Since the image width is already 100%, horizontal margins increase the rendered width beyond the container size.

Possible fixes could include:

• removing image margins
• scoping margins more selectively
• or using a different sizing strategy

I attached a screenshot demonstrating the overflow behavior.