Setting CSS style attributes with thymeleaf

The answer suggested by @Leandro Carracedo did not work for me (but it helped along the way), I had to add second pair of brackets and '$' to get the value out of the variable

<td th:style="'font-size:'+@{${headerTemplateTextSize}}+'; -webkit-margin-before: 0.67em; -webkit-margin-after: 0.67em; -webkit-margin-start: 0px;-webkit-margin-end: 0px; font-weight: 300; max-width: 100px'">
    <div>...</div>
</td>

You could achieve that if you use th:style to set your style attribute:

<div th:style="'background:url(' + @{/<path-to-image>} + ');'"></div>

Check this thread on thymeleaf forum.

You can also use literal substitutions:

<div th:style="|background:url(@{/<path-to-image>});|"></div>