Utilizing combined selectors in styled-components: A comprehensive guide

My existing CSS code is structured like this:

.btn_1 {
    color: #fff;
    background: #004dda;
    display: inline-block;
}
.btn_1:hover {
  background-color: #FFC107;
  color: #222 !important;
}
.btn_1.full-width {
  display: block;
  width: 100%;
}

I am looking to transition to using styled-components in React (CSS-in-JS).

Here is my progress with the migration:

.btn_1 {
    color: #fff;
    background: #004dda;
    display: inline-block;
    :hover {
        background-color: #FFC107;
        color: #222 !important;
    }
}

However, I am unsure how to handle selectors like .btn_1.full-width in styled-components. Should I create a separate CSS block for that?


I had an idea to do something like this (or improve upon it):

.btn_1 {
    ${this}.full-width {
        display: block;
        width: 100%;
   }
}

Despite searching through the documentation, I haven't found a solution yet. Do you have any insights on how to achieve this or if it's even a good approach?

Answer №1

from official styled components documentation

To handle complex selector patterns, the ampersand (&) serves as a reference back to the main component. Here are some additional examples of how it can be utilized:

const Element = styled.div.attrs({ tabIndex: 0 })`
  color: blue;

  &:hover {
    color: red; // changes color when hovered over
  }

  & ~ & {
    background: tomato; // applies background style when sibling to another element of the same type
  }

  & + & {
    background: lime; // styles the next adjacent element of the same type
  }

  &.something {
    background: orange; // targets elements with an extra CSS class called ".something"
  }

  .something-else & {
    border: 1px solid; // targets elements labeled with ".something-else"
  }
`

Answer №2

You have the ability to link nested selectors using the ampersand symbol.

.btn_1 {
    &.full-width {
        display: block;
        width: 100%;
   }
}

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