JavaScript生成表格中图片切片缩放后出现间隙问题求助

Hey there! I see you're working on stitching sliced images together with a JavaScript-generated table, and running into gaps when resizing with CSS. This is a super common issue with tables and inline media elements—let's fix it up.

The Root Causes #

Those annoying gaps usually stem from a few browser default behaviors and style inconsistencies:

• Built-in table spacing (border spacing, cell padding) that browsers apply by default
• Subtle alignment gaps from text baseline handling (even for block elements in table cells)
• Mismatched sizing rules between your table, cells, and images

Step-by-Step Fixes #

1. Update Your CSS to Eliminate All Spacing

Replace your existing CSS with this targeted code to lock down spacing and alignment:

.myTable {
  max-width: 90%;
  width: 100%; /* Ensures the table fills its container evenly */
  border-collapse: collapse; /* Merges cell borders to eliminate gaps between cells */
  border-spacing: 0; /* Fallback for older browsers */
  margin: 0 auto; /* Keeps table centered, replaces inline align="center" if you want */
}

.myTable td {
  padding: 0; /* Wipes out default cell padding */
  margin: 0; /* Removes any unexpected cell margins */
  border: none; /* No borders adding extra space */
  line-height: 0; /* Fixes tiny baseline alignment gaps */
}

.myImg {
  display: block;
  width: 100%; /* Forces images to fill their cell completely */
  height: auto; /* Maintains image aspect ratio during resizing */
  margin: 0; /* No extra margin on images themselves */
}

2. Clean Up Your Table Markup (Optional)

Since we're handling spacing with CSS now, you can remove the inline cellspacing="0" and cellpadding="0" from your JavaScript-generated table to keep markup clean. Your table line can simplify to:

document.write('<table class="myTable" align="center">');

Why This Works #

• border-collapse: collapse is the key fix—it forces the table to merge cell borders entirely, removing any default spacing between cells.
• Removing padding/margin from cells ensures no internal space pushes your image slices apart.
• line-height: 0 on cells fixes that tiny, easy-to-miss gap caused by browsers aligning elements to the text baseline (even for block images).
• width: 100% on images makes them perfectly fill their cells, so resizing the table won't leave empty space between slices.

Test It Out #

After applying these changes, resize your browser or adjust the container width—your sliced images should stay tightly stitched together without any gaps.

内容的提问来源于stack exchange，提问作者Aaron W