CSS – Set Image/img Opacity with Mouseover Effect

Use the following code to set image opacity.

.imgClass {
  opacity: 0.5;
  filter: alpha(opacity=50);


For normal browser, the opacity attribute works very well. But for the amazing Internet Explorer, you gotta use the filter attribute.

Try the following for mouseover effect.

      <img src="http://www.google.com.hk/images/logo_sm.gif" style="opacity:0.4;filter:alpha(opacity=40)" onmouseover="this.style.opacity=1;this.filters.alpha.opacity=100" onmouseout="this.style.opacity=0.4;this.filters.alpha.opacity=40" />


Done =)

Reference: CSS Image Opacity / Transparency

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