How to darken a background using CSS

Question

I have an element with text in it  Whenever I decrease the opacity  then I decrease the opacity of the WHOLE body  Is there any way I can just make the background-image darker  and not everything else    background-image url  http   fc02 deviantart net fs71 i 2011 274 6 f ocean  sky  stars  and you by muddymelly-d4bg1ub png

User · Answer

when you want to brightness or darker of background-color  you can use this css code   brighter-span     filter  brightness 150        darker-span     filter  brightness 50

User · Answer

Setting background-blend-mode to darken would be the most direct and shortest way to achieve the purpose however you must set a background-color first for the blend mode to work  This is also the best way if you need to manipulate the values in javascript later on   background  rgba 0  0  0   65  url  http   fc02 deviantart net fs71 i 2011 274 6 f ocean  sky  stars  and you by muddymelly-d4bg1ub png    background-blend-mode  darken    Can I use for background-blend

User · Answer

It might be possible to do this with box-shadow   however  I can t get it to actually apply to an image  Only on solid color backgrounds   x000D   x000D  body   x000D    background   131418  x000D    color   999  x000D    text-align  center  x000D    x000D   mycooldiv   x000D    width  400px  x000D    height  300px  x000D    margin  2  auto  x000D    border-radius  100   x000D    x000D   red   x000D    background  red x000D    x000D   blue   x000D    background  blue x000D    x000D   yellow   x000D    background  yellow x000D    x000D   green   x000D    background  green x000D    x000D   darken   x000D    box-shadow  inset 0px 0px 400px 110px rgba 0  0  0   7   x000D      darkness level control - change the alpha value for the color for darken ligheter effect    x000D    x000D  Red x000D   lt div class  mycooldiv red  gt  lt  div gt  x000D  Darkened Red x000D   lt div class  mycooldiv red  id  darken  gt  lt  div gt  x000D  Blue x000D   lt div class  mycooldiv blue  gt  lt  div gt  x000D  Darkened Blue x000D   lt div class  mycooldiv blue  id  darken  gt  lt  div gt  x000D  Yellow x000D   lt div class  mycooldiv yellow  gt  lt  div gt  x000D  Darkened Yellow x000D   lt div class  mycooldiv yellow  id  darken  gt  lt  div gt  x000D  Green x000D   lt div class  mycooldiv green  gt  lt  div gt  x000D  Darkened Green x000D   lt div class  mycooldiv green  id  darken  gt  lt  div gt  x000D   x000D   x000D

User · Answer

Use an  after psuedo-element    overlay       position  relative      transition  all 1s      overlay after       content    A       position  absolute      width  100        height 100       top 0       left 0      background rgba 0 0 0 0 5       opacity  1      transition  all 0 5s      -webkit-transition  all 0 5s      -moz-transition  all 0 5s     overlay hover after       opacity  0      Check out my pen     http   codepen io craigocurtis pen KzXYad

User · Answer

This is the easiest way I found   background  black    opacity  0 5

User · Answer

You can use a container for your background  placed as absolute and negative z-index   http   jsfiddle net 2YW7g   HTML   lt div class  main  gt       lt div class  bg  gt                lt  div gt      Hello World      lt  div gt    CSS   main      width 400px      height 400px      position relative      color red      background-color transparent      font-size 18px     main  bg      position absolute        width 400px      height 400px      background-image url  http   fc02 deviantart net fs71 i 2011 274 6 f ocean  sky  stars  and you by muddymelly-d4bg1ub png        z-index -1      main hover  bg      opacity 0 5

User · Answer

Just to add to what s already here  use the following    background  -moz-linear-gradient rgba 0 0 0  7  rgba 0 0 0  7    background  -webkit-linear-gradient rgba 0 0 0  7  rgba 0 0 0  7    background  linear-gradient rgba 0 0 0  7  rgba 0 0 0  7    filter  unquote  progid DXImageTransform Microsoft gradient  startColorstr   b3000000   endColorstr   b3000000  GradientType 0           for cross-browser support of a 70  linear-gradient overlay  To brighten the image  you can change all those 0 0 0 s into 255 255 255 s  If 70  is a bit much  go ahead and change the  7  And  for future reference check out this  http   www colorzilla com gradient-editor

User · Answer

Just add this code to your image css  x000D   x000D   body   background             top  transparent black  faked with gradient             linear-gradient            rgba 0  0  0  0 7              rgba 0  0  0  0 7                        bottom  image            url https   images unsplash com photo-1614030424754-24d0eebd46b2         x000D   x000D   x000D   Reference  linear-gradient   - CSS   MDN UPDATE  Not all browsers support RGBa  so you should have a  fallback color   This color will be most likely be solid  fully opaque  ex background rgb 96  96  96   Refer to this blog for RGBa browser support

User · Answer

For me the filter gradient approach didn t work  perhaps due to the existing CSS  so I have used  before pseudo styling trick instead    eventBannerContainer       position  relative     eventBannerContainer before       background-color  black      height  100       width  100       content          opacity  0 5      position  absolute      display  block       make any immediate child elements above our darkening mask     eventBannerContainer  gt          position  relative

[html] How to darken a background using CSS?

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