选项卡栏活动动画-仅 CSS

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html

css

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html

<nav class="tabbar">
    <div>
        <input id="menu-1" type="radio" name="menu" checked>
        <label for="menu-1">
            <svg>
                <use xlink:href="#messageIcon">
            </svg>
            <span>Messages</span>
        </label>
        <input id="menu-2" type="radio" name="menu">
        <label for="menu-2">
            <svg>
                <use xlink:href="#imageIcon">
            </svg>
            <span>Images</span>
        </label>
        <input id="menu-3" type="radio" name="menu">
        <label for="menu-3">
            <svg>
                <use xlink:href="#settingsIcon">
            </svg>
            <span>Settings</span>
        </label>
        <span></span>
    </div>
</nav>

css

.tabbar {
  --icon-active: #275EFE;
  --icon-inactive: #6C7486;
  --icon-hover: #99A3BA;
  --text: #E4ECFA;
  --circle: #E4ECFA;
  --background: #171C28;
  --shadow: rgba(18, 22, 33, .1);
  border-radius: 0 0 12px 12px;
  background: var(--background);
  width: 240px;
  height: 64px;
  padding: 0 12px;
  box-shadow: 0 8px 16px var(--shadow);
}
.tabbar > div {
  display: flex;
  height: 100%;
  position: relative;
}
.tabbar > div label {
  flex: 0 0 33.33%;
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
  cursor: pointer;
  z-index: 1;
}
.tabbar > div label svg,
.tabbar > div label span {
  display: block;
  -webkit-backface-visibility: hidden;
  transition: opacity 0.4s ease, color 0.4s ease, -webkit-transform 0.4s cubic-bezier(0.2, 0.64, 0.48, 1.12);
  transition: transform 0.4s cubic-bezier(0.2, 0.64, 0.48, 1.12), opacity 0.4s ease, color 0.4s ease;
  transition: transform 0.4s cubic-bezier(0.2, 0.64, 0.48, 1.12), opacity 0.4s ease, color 0.4s ease, -webkit-transform 0.4s cubic-bezier(0.2, 0.64, 0.48, 1.12);
  -webkit-transform: translateY(var(--y)) scale(var(--s));
          transform: translateY(var(--y)) scale(var(--s));
}
.tabbar > div label svg {
  --y: 0;
  --s: .84;
  width: 24px;
  height: 24px;
  margin: auto;
  color: var(--icon-inactive);
  -webkit-transform-origin: 50% 50%;
          transform-origin: 50% 50%;
}
.tabbar > div label span {
  --y: -8px;
  --s: .92;
  font-size: 10px;
  font-weight: 500;
  position: absolute;
  left: 0;
  right: 0;
  text-align: center;
  bottom: 0;
  opacity: 0;
  color: var(--text);
  -webkit-transform-origin: 50% 0;
          transform-origin: 50% 0;
}
.tabbar > div label:hover svg {
  color: var(--icon-hover);
}
.tabbar > div label:active svg {
  --s: .76;
}
.tabbar > div input {
  display: none;
}
.tabbar > div input:nth-of-type(1):checked + label + input + label + input + label + span {
  --x: 0;
}
.tabbar > div input:nth-of-type(2):checked + label + input + label + span {
  --x: 100%;
}
.tabbar > div input:nth-of-type(3):checked + label + span {
  --x: 200%;
}
.tabbar > div input:checked + label svg {
  --y: -24px;
  --s: 1;
  color: var(--icon-active);
}
.tabbar > div input:checked + label span {
  --s: 1;
  --y: -14px;
  opacity: 1;
}
.tabbar > div > span {
  --x: 0;
  display: block;
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 33.33%;
  transition: -webkit-transform 0.4s cubic-bezier(0.2, 0.64, 0.48, 1.12);
  transition: transform 0.4s cubic-bezier(0.2, 0.64, 0.48, 1.12);
  transition: transform 0.4s cubic-bezier(0.2, 0.64, 0.48, 1.12), -webkit-transform 0.4s cubic-bezier(0.2, 0.64, 0.48, 1.12);
  -webkit-transform: translateX(var(--x));
          transform: translateX(var(--x));
  -webkit-backface-visibility: hidden;
}
.tabbar > div > span:after {
  content: '';
  width: 44px;
  height: 44px;
  display: block;
  border-radius: 50%;
  background: var(--circle);
  position: absolute;
  left: 50%;
  top: 0;
  box-shadow: 0 2px 8px var(--shadow);
  margin: -14px 0 0 -22px;
}

html {
  box-sizing: border-box;
  -webkit-font-smoothing: antialiased;
}

* {
  box-sizing: inherit;
}
*:before, *:after {
  box-sizing: inherit;
}

body {
  min-height: 100vh;
  font-family: Roboto, Arial;
  color: #ADAFB6;
  display: flex;
  justify-content: center;
  align-items: center;
  background: #3F4656;
}
body .dribbble {
  position: fixed;
  display: block;
  right: 20px;
  bottom: 20px;
}
body .dribbble img {
  display: block;
  height: 28px;
}

JavaScript

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