自定义输入范围-CSS变量

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html

css

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html

css

:root {
  --deg: 5deg;
  --base: #43c2af;
  --second: #7e8bc6;
  --trackball: var(--base);
  --range: 0%;
  --bg: #10252f;
}

body {
  background-color: var(--bg);
  height: 100vh;
  transition: 0.8s all ease;
  display: flex;
  justify-content: center;
  align-items: center;
  font-family: "Roboto Mono", monospace;
}

.container {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 300px;
  flex-direction: column;
  position: relative;
  width: 300px;
}

input[type="range"] {
  -webkit-appearance: none;
  width: 300px;
  position: relative;
}
input[type="range"]:focus {
  outline: none;
}
input[type="range"]:before {
  position: absolute;
  content: "";
  width: var(--range);
  height: 2px;
  background: var(--second);
}

input[type="range"]::-webkit-slider-runnable-track {
  background: var(--base);
  height: 2px;
}

input[type="range"]::-webkit-slider-thumb {
  width: 10px;
  height: 10px;
  border-radius: 100%;
  border: none;
  -webkit-appearance: none;
  background-color: var(--trackball);
  margin-top: -3.5px;
  z-index: 99;
  position: relative;
  transition: 0.5s all ease;
}

#value {
  position: absolute;
  left: var(--range);
  top: 41%;
  font-size: 14px;
  color: var(--trackball);
  transition: 0.5s color ease;
}

JavaScript

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