<html>
<head>
<meta charset="utf-8">
<title>HTML5 SVG分类下拉菜单选择特效 - 站长素材</title>
<style type="text/css">
@import url("https://fonts.googleapis.com/css2?family=Roboto&display=swap");
*,
*::before,
*::after {
margin: 0;
padding: 0;
box-sizing: border-box;
}
:root {
--bg-color: #222429;
--primary-bg-color: #333740;
--primary-color: #2c62f6;
--text-color: #b1b8ca;
--text-active: #ffffff;
--button-hover-bg-color: #2b2e34;
--border-color: #494d59;
--dropdown-height: 0;
--rotate-arrow: 0;
--translate-value: 0;
--list-opacity: 0;
--transition-time: 0.4s;
--transition-timing: cubic-bezier(0.25, 0.46, 0.45, 0.94);
--border-radius: 1.4rem;
--list-button-height: 4.6rem;
--floating-icon-size: 26;
--floating-icon-top: 0;
--floating-icon-left: 0;
}
html {
font-size: 62.5%;
}
html,
body {
height: 100%;
}
body {
display: flex;
flex-direction: column;
align-items: center;
background-color: var(--bg-color);
padding: 1.5rem;
line-height: 1.4;
}
button {
border: none;
cursor: pointer;
background-color: transparent;
outline: none;
}
svg {
height: 1.6rem;
width: 1.6rem;
}
.text-truncate {
text-overflow: ellipsis;
overflow: hidden;
white-space: nowrap;
}
.dropdown-container {
margin-top: 30vh;
display: flex;
flex-direction: column;
width: 100%;
max-width: 34rem;
}
.dropdown-title-icon,
.dropdown-arrow {
display: inline-flex;
}
.dropdown-title {
margin: 0 auto 0 1.8rem;
text-transform: capitalize;
}
.dropdown-button {
font-family: "Roboto", sans-serif;
font-weight: 400;
font-size: 1.7rem;
display: flex;
align-items: center;
padding: 0 1.8rem;
}
.dropdown-button svg {
transition: all var(--transition-time) var(--transition-timing);
fill: var(--text-color);
}
.dropdown-button svg,
.dropdown-button span {
pointer-events: none;
}
.dropdown-button:hover,
.dropdown-button:focus {
color: var(--text-active);
}
.dropdown-button:hover svg,
.dropdown-button:focus svg {
fill: var(--text-active);
}
.main-button {
height: 5.2rem;
border-radius: var(--border-radius);
color: var(--text-color);
background-color: var(--primary-bg-color);
border: 0.1rem solid var(--border-color);
transition: all var(--transition-time) var(--transition-timing);
}
.main-button:focus {
border: 0.1rem solid var(--primary-color);
box-shadow: 0 0 0 0.2rem rgba(44, 98, 246, 0.4);
}
.main-button .dropdown-arrow {
transition: transform var(--transition-time) var(--transition-timing);
transform: rotate(var(--rotate-arrow));
margin-left: 1.8rem;
}
.list-button {
height: var(--list-button-height);
transition: color var(--transition-time) var(--transition-timing);
color: var(--text-color);
overflow: hidden;
cursor: none;
}
.dropdown-list-container {
overflow: hidden;
max-height: var(--dropdown-height);
transition: max-height var(--transition-time) var(--transition-timing);
}
.dropdown-list-wrapper {
margin-top: 1rem;
padding: 1rem;
background-color: var(--primary-bg-color);
border-radius: var(--border-radius);
border: 0.1rem solid var(--border-color);
position: relative;
}
ul.dropdown-list {
position: relative;
list-style-type: none;
}
ul.dropdown-list::before {
content: "";
position: absolute;
top: 0;
right: 0;
left: 0;
z-index: 0;
opacity: 0;
height: var(--list-button-height);
background-color: var(--button-hover-bg-color);
transition: all var(--transition-time) linear;
transform: translateY(var(--translate-value));
border-radius: var(--border-radius);
pointer-events: none;
}
ul.dropdown-list:hover::before,
ul.dropdown-list:hover ~ .floating-icon {
opacity: 1;
}
li.dropdown-list-item {
display: flex;
flex-direction: column;
position: relative;
z-index: 1;
opacity: var(--list-opacity);
transition: opacity 0.8s var(--transition-timing);
}
.floating-icon {
height: calc(var(--floating-icon-size) * 1px);
width: calc(var(--floating-icon-size) * 1px);
position: absolute;
top: var(--floating-icon-top);
left: var(--floating-icon-left);
background-color: var(--border-color);
border-radius: 1rem;
pointer-events: none;
opacity: 0;
transition: opacity var(--transition-time) var(--transition-timing);
z-index: 2;
display: inline-flex;
align-items: center;
justify-content: center;
}
.floating-icon svg {
fill: var(--text-active);
}
</style>
</head>
<body>
<div class="dropdown-container">
<button class="dropdown-button main-button">
<span class="dropdown-title-icon">
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 16 16">
<path d="M16 8.049c0-4.446-3.582-8.05-8-8.05C3.58 0-.002 3.603-.002 8.05c0 4.017 2.926 7.347 6.75 7.951v-5.625h-2.03V8.05H6.75V6.275c0-2.017 1.195-3.131 3.022-3.131.876 0 1.791.157 1.791.157v1.98h-1.009c-.993 0-1.303.621-1.303 1.258v1.51h2.218l-.354 2.326H9.25V16c3.824-.604 6.75-3.934 6.75-7.951z" />
</svg>
</span>
<span class="dropdown-title text-truncate">Facebook</span>
<span class="dropdown-arrow">
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 16 16">
<path d="M7.247 11.14 2.451 5.658C1.885 5.013 2.345 4 3.204 4h9.592a1 1 0 0 1 .753 1.659l-4.796 5.48a1 1 0 0 1-1.506 0z" />
</svg>
</span>
</button>
<div class="dropdown-list-container">
<div class="dropdown-list-wrapper">
<ul class="dropdown-list"></ul>
<div class="floating-icon" aria-hidden="true"></div>
</div>
</div>
</div>
<script type="text/javascript">
const root = document.documentElement;
const dropdownTitleIcon = document.querySelector(".dropdown-title-icon");
const dropdownTitle = document.querySelector(".dropdown-title");
const dropdownList = document.querySelector(".dropdown-list");
const mainButton = document.querySelector(".main-button");
const floatingIcon = document.querySelector(".floating-icon");
const icons = {
linkedin:
"M0 1.146C0 .513.526 0 1.175 0h13.65C15.474 0 16 .513 16 1.146v13.708c0 .633-.526 1.146-1.175 1.146H1.175C.526 16 0 15.487 0 14.854V1.146zm4.943 12.248V6.169H2.542v7.225h2.401zm-1.2-8.212c.837 0 1.358-.554 1.358-1.248-.015-.709-.52-1.248-1.342-1.248-.822 0-1.359.54-1.359 1.248 0 .694.521 1.248 1.327 1.248h.016zm4.908 8.212V9.359c0-.216.016-.432.08-.586.173-.431.568-.878 1.232-.878.869 0 1.216.662 1.216 1.634v3.865h2.401V9.25c0-2.22-1.184-3.252-2.764-3.252-1.274 0-1.845.7-2.165 1.193v.025h-.016a5.54 5.54 0 0 1 .016-.025V6.169h-2.4c.03.678 0 7.225 0 7.225h2.4z",
instagram:
"M8 0C5.829 0 5.556.01 4.703.048 3.85.088 3.269.222 2.76.42a3.917 3.917 0 0 0-1.417.923A3.927 3.927 0 0 0 .42 2.76C.222 3.268.087 3.85.048 4.7.01 5.555 0 5.827 0 8.001c0 2.172.01 2.444.048 3.297.04.852.174 1.433.372 1.942.205.526.478.972.923 1.417.444.445.89.719 1.416.923.51.198 1.09.333 1.942.372C5.555 15.99 5.827 16 8 16s2.444-.01 3.298-.048c.851-.04 1.434-.174 1.943-.372a3.916 3.916 0 0 0 1.416-.923c.445-.445.718-.891.923-1.417.197-.509.332-1.09.372-1.942C15.99 10.445 16 10.173 16 8s-.01-2.445-.048-3.299c-.04-.851-.175-1.433-.372-1.941a3.926 3.926 0 0 0-.923-1.417A3.911 3.911 0 0 0 13.24.42c-.51-.198-1.092-.333-1.943-.372C10.443.01 10.172 0 7.998 0h.003zm-.717 1.442h.718c2.136 0 2.389.007 3.232.046.78.035 1.204.166 1.486.275.373.145.64.319.92.599.28.28.453.546.598.92.11.281.24.705.275 1.485.039.843.047 1.096.047 3.231s-.008 2.389-.047 3.232c-.035.78-.166 1.203-.275 1.485a2.47 2.47 0 0 1-.599.919c-.28.28-.546.453-.92.598-.28.11-.704.24-1.485.276-.843.038-1.096.047-3.232.047s-2.39-.009-3.233-.047c-.78-.036-1.203-.166-1.485-.276a2.478 2.478 0 0 1-.92-.598 2.48 2.48 0 0 1-.6-.92c-.109-.281-.24-.705-.275-1.485-.038-.843-.046-1.096-.046-3.233 0-2.136.008-2.388.046-3.231.036-.78.166-1.204.276-1.486.145-.373.319-
HTML5 SVG分类下拉菜单选择特效.zip
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2023-10-08
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HTML5 SVG分类下拉菜单选择特效.zip （1个子文件） 
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