jquery实现带滚动进度的返回顶部按钮效果代码-html代码-BFW代码库

代码语言：html

代码描述：jquery实现带滚动进度的返回顶部按钮效果代码

下面为部分代码预览，完整代码请点击下载或在bfwstudio webide中打开


<!DOCTYPE html>
<html lang="en" >

<head>

  <meta charset="UTF-8">
<link type="text/css" rel="stylesheet" href="//repo.bfw.wiki/bfwrepo/css/bootstrap.4.3.1.min.css">
<link type="text/css" rel="stylesheet" href="//repo.bfw.wiki/bfwrepo/css/unicons.css">
  
<style>
/* Please ❤ this if you like it! */



@import url('https://fonts.googleapis.com/css?family=Muli:200,200i,300,300i,400,400i,600,600i,700,700i,800,800i,900,900i&subset=latin-ext,vietnamese');
@import url('https://fonts.googleapis.com/css?family=Raleway:100,100i,200,200i,300,300i,400,400i,500,500i,600,600i,700,700i,800,800i,900,900i&subset=latin-ext');



:root {
	font-size: 20px;
	--red: #da2c4d;
	--yellow: #f8ab37;
	--green: #2ecc71;
	--white: #ffffff;
	--grey-light: #f2f7f9;
	--grey: #ecedf3;
	--black: #080808;
	--black-blue: #1f2029;
	--black-blue-light: #353746;
	--black-blue-light-2: #404255;
	--black-blue-light-3: #4b4d64;
	--black-light: #424455;
}
body{
    font-family: 'Raleway', sans-serif;
	font-size: 16px;
	font-weight: 500;
	line-height: 1.65;
	color: var(--grey);
	background-color: var(--black-blue);
	overflow-x: hidden;
	letter-spacing: 0.2px;
	-webkit-transition: all 200ms linear;
	transition: all 200ms linear; 
	text-rendering: optimizeLegibility !important;
	-webkit-font-smoothing: antialiased !important;
}
body.light{
	color: var(--black-light);
}
h1{
    font-family: 'Muli', sans-serif;
	font-size: 12vw;
	font-weight: 900;
	line-height: 1;
	color: var(--white);
	-webkit-transition: all 200ms linear;
	transition: all 200ms linear; 
}
body.light h1{
	color: var(--black);
}
body.light{
	background-color: var(--white);
}
.navbar-brand{
	height: 36px;
	position: fixed;
	top: 50px;
	left: 70px;
	z-index: 3333;
	width: auto;
	display: inline-block;
	margin: 0;
	padding: 0;
	-webkit-transition : all 0.3s ease-out;
	transition : all 0.3s ease-out;
}
.navbar-brand::before{
	position: absolute;
	content: '';
	top: -13px;
	left: 50%;
	width: 80px;
	transform: translateX(-50%);
	height: calc(100% + 26px);
	opacity: 0;
	z-index: -1;
	background-image: linear-gradient(260deg, var(--grey), var(--grey-light));
	animation: border-transform 10s linear infinite alternate forwards;
	-webkit-transition: all 200ms linear;
    transition: all 200ms linear;
}
.navbar-brand::after{
	position: absolute;
	content: '';
	top: -13px;
	left: 50%;
	width: 80px;
	transform: translateX(-50%);
	height: calc(100% + 26px);
	opacity: 1;
	z-index: -1;
	background-image: linear-gradient(160deg, var(--black-blue-light-3), var(--black-blue-light));
	animation: border-transform 10s linear infinite alternate forwards;
	-webkit-transition: all 200ms linear;
    transition: all 200ms linear;
}
.navbar-brand img{
	padding: 7px 0;
	height: 100%;
	width: auto;
	display: block;
	-webkit-transition : all 0.3s ease-out;
	transition : all 0.3s ease-out;
}
@-webkit-keyframes border-transform{
    0%,100% { border-radius: 63% 37% 54% 46% / 55% 48% 52% 45%; } 
	14% { border-radius: 40% 60% 54% 46% / 49% 60% 40% 51%; } 
	28% { border-radius: 54% 46% 38% 62% / 49% 70% 30% 51%; } 
	42% { border-radius: 61% 39% 55% 45% / 61% 38% 62% 39%; } 
	56% { border-radius: 61% 39% 67% 33% / 70% 50% 50% 30%; } 
	70% { border-radius: 50% 50% 34% 66% / 56% 68% 32% 44%; } 
	84% { border-radius: 46% 54% 50% 50% / 35% 61% 39% 65%; } 
}
@keyframes border-transform{
    0%,100% { border-radius: 63% 37% 54% 46% / 55% 48% 52% 45%; } 
	14% { border-radius: 40% 60% 54% 46% / 49% 60% 40% 51%; } 
	28% { border-radius: 54% 46% 38% 62% / 49% 70% 30% 51%; } 
	42% { border-radius: 61% 39% 55% 45% / 61% 38% 62% 39%; } 
	56% { border-radius: 61% 39% 67% 33% / 70% 50% 50% 30%; } 
	70% { border-radius: 50% 50% 34% 66% / 56% 68% 32% 44%; } 
	84% { border-radius: 46% 54% 50% 50% / 35% 61% 39% 65%; } 
}
body.light .navbar-brand::before{
	opacity: 1;
}
body.light .navbar-brand::after{
	opacity: 0;
}

.section {
    position: relative;
	width: 100%;
	display: block;
	overflow: hidden;
	height: 100vh;
}
.center-wrap {
    position: absolute;
	width: 100%;
	display: block;
	overflow: hidden;
	left: 0;
	top: 50%;
	transform: translateY(-50%);
	z-index: 2;
}
.color-gradient-red-yellow {
	background: linear-gradient(160deg, var(--red), var(--yellow));
	-webkit-background-clip: text;
	-webkit-text-fill-color: transparent;
}
.color-gradient-red-yellow .uil:before {
	background: linear-gradient(160deg, var(--red), var(--yellow));
	-webkit-background-clip: text;
	-webkit-text-fill-color: transparent;
}
.size-22 {
	font-size: 22px;
}

/* #Progress
================================================== */

.progress-wrap {
	position: fixed;
	right: 50px;
	bottom: 50px;
	height: 46px;
	width: 46px;
	cursor: pointer;
	display: block;
	border-radius: 50px;
	box-shadow: inset  0 0 0 2px rgba(255,255,255,0.2);
	z-index: 10000;
	opacity: 0;
	visibility: hidden;
	transform: translateY(15px);
	-webkit-transition: all 200ms linear;
    transition: all 200ms linear;
}
.progress-wrap.active-progress {
	opacity: 1;
	visibility: visible;
	transform: translateY(0);
}
.progress-wrap::after {
	position: absolute;
	font-family: 'unicons';
	content: '\e84b';
	text-align: center;
	line-height: 46px;
	font-size: 24px;
	color: var(--grey);
	left: 0;
	top: 0;
	height: 46px;
	width: 46px;
	cursor: pointer;
	display: block;
	z-index: 1;
	-webkit-transition: all 200ms linear;
    transition: all 200ms linear;
}
.progress-wrap:hover::after {
	opacity: 0;
}
.progress-wrap::before {
	position: absolute;
	font-family: 'unicons';
	content: '\e84b';
	text-align: center;
	line-height: 46px;
	font-size: 24px;
	opacity: 0;
	background-i.........完整代码请登录后点击上方下载按钮下载查看