Change background image opacity

Question

I have a div element with text blocks and a parent div in which I have set a background image  Now I want to reduce the opacity of the background image  Please suggest how I can do that   Thanks in advance   EDIT    I am looking to change the way my blog post looks at blogger com by editing the html content  The html code looks as follows    lt div gt     my blog post  lt  div gt    I tried to surround the whole code above with a div element and set opacity of each div separately as below    lt div style  background-image url  image jpg    opacity 0 5   gt   lt div style  opacity 1   gt     my blog post  lt  div gt   lt  div gt    But it is not working

User · Accepted Answer

There is nothing called background opacity. Opacity is applied to the element, its contents and all its child elements. And this behavior cannot be changed just by overriding the opacity in child elements.

Child vs parent opacity has been a long standing issue and the most common fix for it is using rgba(r,g,b,alpha) background colors. But in this case, since it is a background-image, that solution won't work. One solution would be to generate the image as a PNG with the required opacity in the image itself. Another solution would be to take the child div out and make it absolutely positioned.

User · Answer

You can t use transparency on background-images directly  but you can achieve this effect with something like this   http   jsfiddle net m4TgL   HTML    lt div class  container  gt       lt div class  content  gt   my blog post lt  div gt   lt  div gt     CSS    container    position  relative      container before       content          position  absolute      top  0      bottom  0      left  0      right  0      z-index  1      background-image  url  image jpg       opacity  0 5      content       position  relative       z-index  2

User · Answer

You can also simply use this   x000D   x000D   bg rgba     background  linear-gradient 0deg  rgba 255  255  255  0 9   rgba 255  255  255  0 9    url  https   picsum photos 200      width  200px    height  200px    border  1px solid black    x000D   lt div class  bg rgba  gt  lt  div gt  x000D   x000D   x000D   You can change the opacity of the color to your preference

User · Answer

and you can do that by simple code   filter alpha opacity 30   -moz-opacity 0 3  -khtml-opacity  0 3  opacity  0 3

User · Answer

Responding to an earlier comment  you can change the background by variable in the  container  example if the CSS is in your php page and not in the css style sheet    bgimage     some image url   background-image  url   lt  php echo  bgimage    gt

User · Answer

You can create several divs and do that    lt div style  width 100px  height 100px   gt      lt div style  position relative  top 0px  left 0px  width 100px  height 100px  opacity 0 3   gt  lt img src  urltoimage  alt       gt  lt  div gt      lt div style  position relative  top 0px  left 0px  width 100px  height 100px   gt  DIV with no opacity  lt  div gt   lt  div gt    I did that couple times    Simple  yet effective

User · Answer

What I did is     lt div id  bg-image  gt  lt  div gt   lt div class  container  gt       lt h1 gt Hello World  lt  h1 gt   lt  div gt    CSS    html       height  100       width  100     body       height  100       width  100      bg-image       height  100       width  100       position  absolute      background-image  url images background jpg       background-position  center center      background-repeat  no-repeat      background-size  cover      opacity  0 3

User · Answer

Nowadays  it is possible to do it simply with CSS property  background-blend-mode     lt div id  content  gt Only one div needed lt  div gt   div content       background-image  url my image png       background-color  rgba 255 255 255 0 6       background-blend-mode  lighten         You may add things like width  height  background-size           It will blend the background-color  which is white  0 6 opacity  into the background image  Learn more here  W3S

User · Answer

Try doing this   x000D   x000D   bg rgba     background-image  url https   picsum photos 200     background-color  rgba 255  255  255  0 486     background-blend-mode  overlay    width  200px    height  200px    border  1px solid black    x000D   lt div class  bg rgba  gt  lt  div gt  x000D   x000D   x000D   worked in my case  You can reduce or increase the background-color alpha value according to your needs

[html] Change background image opacity

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