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:

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

css#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 */
}

Результат:

Misol

Endi matnga yarim shaffoflik qo'shamiz:

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

css#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 */
}

Результат:

Misol

Endi esa yarim shaffof chegarani yasaymiz:

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

css#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;
}

Результат:

Misol

Endi esa yarim shaffof fonni yasaymiz:

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

css#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;
}

Результат:

Amaliy vazifalar