Hi Rumbanana,
The
caption-width parameter just defines the maximum width of the caption. The actual width is determined automatically based on its content.
You can try to set the exact width with the CSS rules of .MagicThumb-caption class in the magicthumb.css file, e.g.
/* Style of the caption for the expanded image */
.MagicThumb-caption {
color: #333;
font: normal 10pt Verdana, Helvetica;
background: #ccc;
text-align: left;
padding: 8px;
border: 0 !important;
outline: 0 !important;
width: 450px;
}
Hope this helps.
Alex