I am attempting to design a div element with a basic background color and some text displayed on it. I would like to lower the opacity of the background color in this div, but every time I try, the opacity of the text also changes. Is there a way to adjust the opacity of the background color only without affecting the text?
.main{
background-color: red;
width: 100%;
height: 200px;
opacity: 0.5;
}<div class="main">
<p>The opacity of this text should remain unchanged.</p>
</div>.main{
background:rgba(220,0,0,0.2);
width: 100%;
height: 200px;
}<div class="main">
<p>The transparency of this text should remain unchanged.</p>
</div>This CSS can be applied.
.main{
background:rgba(170,0,0,0.2);
width: 100%;
height: 200px;
}
RGBA color values are a useful extension of traditional RGB values, allowing for transparency with the alpha channel.
The acronym RGBA stands for red, green, blue, and alpha.
.main{
background-color: rgba(255, 0, 0, 0.5);
width: 100%;
height: 200px;
}<div class="main">
<p>The opacity of this text should remain consistent.</p>
</div>To adjust the opacity of a color, you can utilize the alpha channel within RGBA. This channel acts as the 4th argument and determines the transparency level.
rgba(255,0,0,0.1) /* 10% opaque red /
rgba(255,0,0,0.4) / 40% opaque red /
rgba(255,0,0,0.7) / 70% opaque red /
rgba(255,0,0, 1) / full opaque red */
Note: The first argument for Red will always be 255, while the other two are set to 0. You can modify the 4th parameter between 0-1 to control the opacity.
.main{
background-color: rgba(255,0,0,0.7);
width: 100%;
height: 200px;
/*opacity: 0.5;*/
}<div class="main">
<p>Opacity of this text shouldn't be changed.</p>
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