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2020.01.28 / 24:46
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js
var section1s = document.getElementsByClassName("section1"); var section2s = document.getElementsByClassName("section2"); for( var i = 0; i < section1s.length; i++ ){ var section1 = section1s.item(i); section1.style.border = "1px solid #0000ff"; } for( var i = 0; i < section2s.length; i++ ){ var section2 = section2s.item(i); section2.style.border = "1px solid #ff0000" }
html
div1
- 1-1
- 1-2
- 1-3
div2
- 2-1
- 2-2
- 2-3
div
- 1
- 1-1
- 1-2
- 1-3
div
- 2
- 2-1
- 2-2
- 2-3
Ãâó: https://javacpro.tistory.com/35 [¹ö¹°¸®ÀÇ IT°øºÎ]