CSS - Button with transparent text

user_3063182 0
Viewed 6309

In my website, I need to display a button where the background is white, and the text gets the color of the background below, which can be a solid color or a background image.

Since the background and the button location are dynamic, I can't use the solutions that where written here.

See Example below.

I'm looking for a css only solution.

Thanks for helping.

Blue backgroundpurple background

css
2 Answers

You can get this effect by adding the button's background in front of the text, using a pseudo element, and then using mix-blend-mode on the button (screen), and the pseudo element (color-burn) to create the cutout effect.

Note: this will only work if the button's background is white.

Note: mix-blend-mode is not supported by IE.

.button {
  position: relative;
  padding: 0.5em 1em;
  font-size: 1.2em;
  border: none;
  background: none;
  outline: none;
  color: black;
  mix-blend-mode: screen;
}

.button::before {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  background: white;
  border-radius: 0.3em;
  content: '';
  mix-blend-mode: color-burn;
}

.bg {
  padding: 2em;
}

.bg1 {
  background: purple;
}

.bg2 {
  background: linear-gradient(to bottom, gold 50%, silver 50%);
}
<div class="bg bg1">
  <button class="button">Text</button>
</div>

<div class="bg bg2">
  <button class="button">Text</button>
</div>

user_51574540

As ansered by Ori Drori, mix-blend-mode is the way to go but there's no need to use pseudo elements. Just mix background-color, color and mix-blend-mode depending on the background you want.

Light backgrounds generally needs color: black and mix-blend-mode: lighten while dark backgrounds needs the opposite to work. A few examples:

.white {
  background-color: white;
  color: black;
  mix-blend-mode: lighten;
}

.black {
  background-color: black;
  color: white;
  mix-blend-mode: darken;
}

.blue {
  background-color: darkblue;
  color: white;
  mix-blend-mode: darken;
}

.yellow {
  background-color: lightyellow;
  color: black;
  mix-blend-mode: lighten;
}

.button {
  margin-top: 0.25rem;
  border: none;
  padding: 1rem 2rem;
  border-radius: 10rem;
  font-size: 6rem;
  cursor: pointer;
}

body {
  background-color: pink;
}

.bg {
  position: absolute;
  top: 0;
  left: 0;
}
svg {
  width: 35rem;
  height: 35rem;
}
svg img {
  width: 100%;
  height: 100%;
}
<div class="bg">
  <svg>
    <image href="https://yari-demos.prod.mdn.mozit.cloud/en-US/docs/Web/SVG/Element/image/mdn_logo_only_color.png" />
  </svg>
</div>
<button class="button white">
  White button
</button>
<button class="button black">
  Black button
</button>
<button class="button blue">
  Blue button
</button>
<button class="button yellow">
  Light yellow
</button>

user_43163140
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