인접 형제 결합자

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.

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인접 형제 결합자(+)는 앞에서 지정한 요소의 바로 다음에 위치하는 형제 요소만 선택합니다.

css

/* Paragraphs that come immediately after any image */
img + p {
  font-weight: bold;
}

구문

former_element + target_element { style properties }

css

li:first-of-type + li {
  color: red;
}

html

<ul>
  <li>One</li>
  <li>Two!</li>
  <li>Three</li>
</ul>

Specification
Selectors Level 4 # adjacent-sibling-combinators