什么机制阻止div完全占据其父母的宽度？

Question

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            <a class="apg-grid-item" href="http://victorbartis.ro/wordpress/project/ambasada-iubirii" width="1000px">
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                    <img src="http://victorbartis.ro/wordpress/wp-content/uploads/2018/12/T1.jpg" style="top: 353px; left: 1014.5px; visibility: hidden; opacity: 0; transform: matrix(1, 0, 0, 1, 0, 0);">
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                        <p class="calupstanga">AMBASADA IUBIRII </p>
                        <p class="calupmijloc">&nbsp;</p>
                        <p class="calupdreapta"> undeva in oras</p>
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手动放置width=和display=属性，以使内部元素与最外部元素的宽度匹配。 尝试使用多个值，例如auto，100%，1000，1000px，并检查margin和padding属性为0。我猜有些其他元素的属性正在阻碍。有提示吗？