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[] https://www.educative.io/collection/5191711974227968/5641332169113600 [] https://developer.mozilla.org/es/docs/Web/CSS/Selectores_atributo [] https://developer.mozilla.org/es/docs/Web/CSS/Pseudoelementos

Comments

/*My comment*/

/*
- More comments...
*/

ID

/*Good*/
#header{

}

/*Bad*/
#1header{

}

/*Correct*/
#header1{

}

Nested

.header{
  &.is-fixed{
    position: fixed;
  }
}

.header{
  color: red;
  .navigation{
    position: relative;
  }
}

.header,
.footer{
  color: red;
}