hr 요소의 CSS 디자인 샘플 12가지

실선

hr {
  border-top: 1px solid #bbb;
}

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이중선

hr {
  border-top: 3px double #bbb;
}

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점선 - 대쉬

hr {
  border-top: 1px dashed #bbb;
}

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점선 - 도트

hr {
  border-top: 1px dotted #bbb;
}

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점선 - 대쉬 (배경)

hr {
  background-color: #fff;
  border-top: 2px dashed #bbb;
}

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점선 - 도트 (배경)

hr {
  background-color: #fff;
  border-top: 2px dotted #bbb;
}

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실선 (입체)

hr {
  border-top: 1px solid #bbb;
  border-bottom: 1px solid #fff;
}

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이중선 (입체)

hr {
  border-top: 1px solid #bbb;
  border-bottom: 1px solid #fff;
}
hr:after {
  content: '';
  display: block;
  margin-top: 2px;
  border-top: 1px solid #bbb;
  border-bottom: 1px solid #fff;
}

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점선 - 대쉬 (입체)

hr {
  border-top: 1px dashed #bbb;
  border-bottom: 1px dashed #fff;
}

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점선 - 도트 (입체)

hr {
  border-top: 1px dotted #bbb;
  border-bottom: 1px dotted #fff;
}

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배경 이미지 #1

hr {
  height: 4px;
  background: url(line01.png) repeat-x 0 0;
}

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배경 이미지 #2

hr {
  height: 4px;
  background: url(line02.png) repeat-x 0 0;
}

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그림자

hr {
  height: 10px;
  border: 0;
  box-shadow: 0 10px 10px -10px #bbb inset;
}

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그라데이션

hr {
  height: 1px;
  background: #bbb;
  background-image: -webkit-linear-gradient(left, #eee, #777, #eee);
  background-image: -moz-linear-gradient(left, #eee, #777, #eee);
  background-image: -ms-linear-gradient(left, #eee, #777, #eee);
  background-image: -o-linear-gradient(left, #eee, #777, #eee);
}

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기타 #1

hr {
  border-top: 4px double #bbb;
  text-align: center;
}
hr:after {
  content: '\002665';
  display: inline-block;
  position: relative;
  top: -15px;
  padding: 0 10px;
  background: #f0f0f0;
  color: #bbb;
  font-size: 18px;
}

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기타 #2

hr {
  border-top: 1px dashed #bbb;
}
hr:after {
  content: '\002702';
  display: inline-block;
  position: relative;
  top: -12px;
  left: 40px;
  padding: 0 3px;
  background: #f0f0f0;
  color: #bbb;
  font-size: 18px;
}

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기타 #3

hr {
  border-top: 1px solid #bbb;
  text-align: center;
}
hr:after {
  content: '§';
  display: inline-block;
  position: relative;
  top: -14px;
  padding: 0 10px;
  background: #f0f0f0;
  color: #bbb;
  font-size: 18px;
  -webkit-transform: rotate(60deg);
  -moz-transform: rotate(60deg);
  transform: rotate(60deg);
}

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출처
• https://www.nxworld.net/tips/hr-css-design.html