[해피CGI][cgimall] 선택 메뉴를 따라다니는 드롭다운 메뉴 Pure CSS Select Box With Direction Aware Hover Effect

메뉴를 선택하면 선택된 상태로 따라다니는 드롭다운 메뉴입니다.
활용도가 높아 다양한 사이트에서 사용 가능합니다.

HTML 구조

<div id="info">

  Observe the platform icon's motion direction when there is up and down

  hover on options.

</div>

 

<form>

  <input type="checkbox" id="options-checkbox-btn" />

  <div id="select-btn" class="fx fx-justify-between">

    <div id="selected-value">

      <span>Select a platform</span>

    </div>

    <div id="chevrons">

      <i class="fas fa-chevron-up"></i>

      <i class="fas fa-chevron-down"></i>

    </div>

  </div>

  <div id="options">

    <div class="option">

      <input class="option-radio-btn top" type="radio" name="platform" value="codepen" />

      <input class="option-radio-btn bottom" type="radio" name="platform" value="codepen" />

      <i class="fab fa-codepen"></i>

      <span class="option-label">CodePen</span>

      <span class="option-value">CodePen</span>

    </div>

    <div class="option">

      <input class="option-radio-btn top" type="radio" name="platform" value="dribbble" />

      <input class="option-radio-btn bottom" type="radio" name="platform" value="dribbble" />

      <i class="fab fa-dribbble"></i>

      <span class="option-label">Dribbble</span>

      <span class="option-value">Dribbble</span>

    </div>

    <div class="option">

      <input class="option-radio-btn top" type="radio" name="platform" value="behance" />

      <input class="option-radio-btn bottom" type="radio" name="platform" value="behance" />

      <i class="fab fa-behance"></i>

      <span class="option-label">Behance</span>

      <span class="option-value">Behance</span>

    </div>

    <div class="option">

      <input class="option-radio-btn top" type="radio" name="platform" value="hackerrank" />

      <input class="option-radio-btn bottom" type="radio" name="platform" value="hackerrank" />

      <i class="fab fa-hackerrank"></i>

      <span class="option-label">HackerRank</span>

      <span class="option-value">HackerRank</span>

    </div>

    <div class="option">

      <input class="option-radio-btn top" type="radio" name="platform" value="stackoverflow" />

      <input class="option-radio-btn bottom" type="radio" name="platform" value="stackoverflow" />

      <i class="fab fa-stack-overflow"></i>

      <span class="option-label">StackOverflow</span>

      <span class="option-value">StackOverflow</span>

    </div>

    <div class="option">

      <input class="option-radio-btn top" type="radio" name="platform" value="freecodecamp" />

      <input class="option-radio-btn bottom" type="radio" name="platform" value="freecodecamp" />

      <i class="fab fa-free-code-camp"></i>

      <span class="option-label">FreeCodeCamp</span>

      <span class="option-value">FreeCodeCamp</span>

    </div>

    <div id="option-bg"></div>

  </div>

</form>

 

CSS 소스

* {

  user-select: none;

}

 

*:focus {

  outline: none;

}

 

html,

body {

  height: 100%;

  min-height: 100%;

}

 

body {

  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,

    Oxygen, Ubuntu, Cantarell, "Open Sans", "Helvetica Neue", sans-serif;

  padding-bottom: 100px;

  margin: 0;

  background-color: #ebf3f3;

}

 

.fx {

  display: flex;

}

 

.fx-justify-between {

  justify-content: space-between;

}

 

#info {

  position: absolute;

  top: 0;

  right: 0;

  left: 0;

  color: #2d3667;

  font-size: 16px;

  text-align: center;

  padding: 14px;

  background-color: #f3f9f9;

}

 

form {

  position: absolute;

  top: 0;

  right: 0;

  left: 0;

  width: 300px;

  height: 42px;

  margin: 100px auto 0 auto;

  z-index: 1;

}

 

#select-btn {

  position: relative;

  height: 16px;

  padding: 12px 14px;

  background-color: #fff;

  border-radius: 4px;

  cursor: pointer;

  border: 1px solid #e2eded;

  border-color: #eaf1f1 #e4eded #dbe7e7 #e4eded;

}

 

#options-checkbox-btn {

  position: absolute;

  top: 0;

  right: 0;

  bottom: 0;

  left: 0;

  width: 100%;

  height: 100%;

  margin: 0;

  opacity: 0;

  cursor: pointer;

  z-index: 3;

}

 

#selected-value {

  font-size: 16px;

  line-height: 1;

  margin-right: 26px;

}

 

.option i {

  width: 16px;

  height: 16px;

}

 

.option,

.option-label {

  color: #2d3667;

  font-size: 16px;

}

 

#chevrons i {

  display: block;

  height: 50%;

  color: #d1dede;

  font-size: 12px;

}

 

#options-checkbox-btn:checked + #select-btn #chevrons i {

  color: #2d3667;

}

 

.options {

  position: absolute;

  left: 0;

  width: 250px;

}

 

#options {

  position: absolute;

  top: 42px;

  right: 0;

  left: 0;

  width: 298px;

  margin: 0 auto;

  background-color: #fff;

  border-radius: 4px;

}

 

#options-checkbox-btn:checked ~ #options {

  border: 1px solid #e2eded;

  border-color: #eaf1f1 #e4eded #dbe7e7 #e4eded;

}

 

.option {

  position: relative;

  line-height: 1;

  transition: 0.3s ease all;

  z-index: 2;

}

 

.option i {

  position: absolute;

  left: 14px;

  padding: 0;

  display: none;

}

 

#options-checkbox-btn:checked ~ #options .option i {

  display: block;

  padding: 12px 0;

}

 

.option-label {

  display: none;

  padding: 0;

  margin-left: 27px;

}

 

#options-checkbox-btn:checked ~ #options .option-label {

  display: block;

  padding: 12px 14px;

}

 

.option-radio-btn {

  position: absolute;

  left: 0;

  width: 100%;

  height: 50%;

}

 

.option-radio-btn.top {

  top: 0;

}

 

.option-radio-btn.bottom {

  bottom: 0;

}

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