CSS-da rgba orqali rang berish

rgb formatidan tashqari, shunga o'xshash ishlaydigan, lekin to'rtinchi parametri bilan rangga yarim shaffoflik berish imkoniyatini beruvchi rgba formati mavjud. Ushbu parametr 0 dan 1 gacha bo'lgan kasrli qiymatlarni qabul qiladi. Bunda birlik to'liq shaffofsizlikka, nol esa to'liq shaffoflikka mos keladi.

Keling, misollar orqali ko'rib chiqaylik.

Misol

Boshlanish uchun shunday shaffof bo'lmagan blok yasaymiz:

<div id="parent">
	<div id="elem">
		Lorem ipsum dolor sit amet.
	</div>
</div>

#parent {
	background-image: url("bg.png");
	background-repeat: no-repeat;
	background-size: cover;
	display: inline-block;
	padding: 30px;
}
#elem {
	width: 300px;
	height: 200px;
	border: 20px solid red;
	padding: 10px;
	font-size: 50px;
	font-weight: bold;
	color: rgba(255, 0, 0); /* qizil rang */
}

Misol

Endi matnga yarim shaffoflik qo'shamiz:

<div id="parent">
	<div id="elem">
		Lorem ipsum dolor sit amet.
	</div>
</div>

#parent {
	background-image: url("bg.png");
	background-repeat: no-repeat;
	background-size: cover;
	display: inline-block;
	padding: 30px;
}
#elem {
	width: 300px;
	height: 200px;
	border: 20px solid red;
	padding: 10px;
	font-size: 50px;
	font-weight: bold;
	color: rgba(255, 0, 0, 0.5); /* qizil yarim shaffof */
}

Misol

Endi esa yarim shaffof chegarani yasaymiz:

<div id="parent">
	<div id="elem">
		Lorem ipsum dolor sit amet.
	</div>
</div>

#parent {
	background-image: url("bg.png");
	background-repeat: no-repeat;
	background-size: cover;
	display: inline-block;
	padding: 30px;
}
#elem {
	width: 300px;
	height: 200px;
	border: 20px solid rgba(255, 0, 0, 0.5); /* qizil yarim shaffof */
	padding: 10px;
	font-size: 50px;
	font-weight: bold;
	color: red;
}

Misol

Endi esa yarim shaffof fonni yasaymiz:

<div id="parent">
	<div id="elem">
		Lorem ipsum dolor sit amet.
	</div>
</div>

#parent {
	background-image: url("bg.png");
	background-repeat: no-repeat;
	background-size: cover;
	display: inline-block;
	padding: 30px;
}
#elem {
	width: 300px;
	height: 200px;
	border: 20px solid red;
	background-color: rgba(0, 0, 0, 0.4); /* qora yarim shaffof */
	padding: 10px;
	font-size: 50px;
	font-weight: bold;
	color: red;
}

Amaliy vazifalar

Abzatslarga qizil yarim shaffof rang bering.

Fonga yashil yarim shaffof rang bering.

Chegaraga havorang yarim shaffof rang bering.