我正在制作作品集网站，我希望我的固定文本在某些部分更改其颜色，我该怎么做？我无法发布我的代码，因为它太大太长，但如果你能给出代码示例会非常高兴，这就是它的样子（https://olaolu.dev），您会看到按钮和名称如何在滚动时改变颜色：）
P.请用js来做，谢谢！
我试图查找信息，但什么也没找到:(
1
781
Design
I'm probably not the typical designer positioned behind an Illustrator artboard adjusting pixels, but I design. Immersed in stylesheets tweaking font sizes and contemplating layouts is where you'll find me (~_^). I'm committed to creating fluent user experiences while staying fashionable.
Engineering
In building JavaScript applications, I'm equipped with just the right tools, and can absolutely function independently of them to deliver fast, resilient solutions optimized for scale — performance and scalabilty are priorities on my radar
Over the past 3 years,
I've built products for companies and businesses around the globe ranging from marketing websites to complex solutions and enterprise apps with focus on fast, elegant and accessible user experiences.
Currently, I work at Shopify as a Senior UX Developer and Accessibility advocate crafting thoughtful and inclusive experiences that adhere to web standards for over a million merchants across the world.
Before now, I was Principal Frontend Engineer at hellotax, where I worked on a suite of tools and services tailored at providing fast, automated VAT Registration / filings & Returns solutions for multi-channel sellers across Europe.
Prior to hellotax, I was Senior frontend engineering contractor with Pixel2HTML, building JavaScript applications and interfaces for orgs and individuals.
I once also led the frontend team at a Russian startup, Conectar through building multiple React applications into a single robust learning platform.
I buld & deign stuff
Open source
projects, web apps
and experimentals.
I write,sometimes
About design,
frontend dev,
learning and life.
Send me a message!
Got a question or proposal, or just want
to say hello? Go ahead.
SAY HELLO
[email protected]
t.me/mrolaolu
My Work
My Shelf
My Resume
© Faxraddin Olawuyi 2022
body {
margin: 0;
padding: 0;
scroll-snap-type: y mandatory;
}
html{
scroll-behavior: smooth;
}
.bar1, .bar2, .bar3 {
width: 2.5vw;
height: .35vw;
background-color: #333;
margin: 6px 0;
transition: 0.2s;
}
.change .bar1 {
transform: translate(0, 11px) rotate(-45deg);
}
.change .bar2 {opacity: 0;}
.change .bar3 {
transform: translate(0, -11px) rotate(45deg);
}
section{
scroll-snap-align: start;
}
.section-top{
height: 47vw;
padding-bottom: 10vw;
}
.details{
background-color:#0b2361;
background-repeat: no-repeat;
background-size: 100vw 100%;
}
.top {
display: flex;
justify-content: space-between;
padding: 1vw;
padding-bottom: 6vw;
}
.top h2{
font-size: 2.2vw;
margin: 0;
margin-top: 30px;
margin-left: 60px;
color:#e9ecf4;
position: fixed;
z-index: 3;
}
.nav-btn {
background: none;
border: none;
font-size: 3vw;
cursor: pointer;
position: fixed;
right: 4.5vw;
top:4vw;
z-index: 3;
padding-bottom: 2vw;
}
#l1{
width: 3vw;
}
#l2{
width: 2vw;
}
.first-info{
display: flex;
justify-content: space-between;
width: 70vw;
margin-left: 10vw ;
padding-top: 30px;
}
.first-sec h1{
font-size: 4.4vw;
color: #f1554c;
}
.first-sec h3{
width: 35vw;
margin-top: -2vw;
font-size: 1.5vw;
color:#e9ecf4;
}
.my-img{
width: 24vw;
margin-top: 10px;
}
.a1{
display: flex;
justify-content: space-between;
width: 35vw;
margin-left: 10vw ;
padding-top: 30px;
color:#f1554c;
margin-top: 20px;
padding-bottom: 6.5vw;
font-size: 1.3vw;
}
.a1 span{
width: 45%;
font-size: 1vw;
}
.some-info {
display: flex;
justify-content: space-between;
width: 93vw;
}
.btn-container{
position: fixed;
z-index: 1;
right: 0;
padding-right: 5.5vw;
margin-top: -3vw;
}
.btn-container ul{
display: flex;
flex-direction: column;
align-items: center;
}
.btn{
margin:.7vw;
cursor: pointer;
z-index: 1;
width: .2vw;
height: .2vw;
background-color: black;
transform: rotate(45deg);
border-style:solid;
transition: 0.3s;
}
.what-do{
background-repeat: no-repeat;
background-size: 100vw 100%;
height: 840px;
background-color: #e9ecf4;
}
.my-info{
display: flex;
margin-left: 7vw ;
position: relative;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
}
.what-doing{
width: 50%;
}
.what-doing h1{
font-size: 4vw;
color: #f1554c;
}
.what-doing p{
font-size: 1.2vw;
width: 30vw;
margin-top: -2vw;
color:#0b2361;
}
#i2{
margin-top: 17vw;
margin-left: 1vw;
}
.exp{
height: 840px;
background-color:#0b2361
}
.e1{
display: flex;
justify-content: space-between;
width: 85vw;
padding-top: 1vw;
margin-left: -8vw;
padding-bottom: 2vw;
position: relative;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
}
.exp-info{
display: flex;
flex-direction: column;
margin-left: 10vw;
color: #e9ecf4;
}
.exp-info h2{
font-size: 4.5vw;
margin-bottom: 0;
}
.exp-info p{
width: 25vw;
font-size: 1.1vw;
}
.exp-img{
height: 40vw;
margin-top: 6vw;
}
.done{
height: 840px;
background-color:#e9ecf4;
}
.grid{
position: relative;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
}
.what-done{
display: flex;
margin: auto;
width: 90vw;
height: 40vw;
background-color: whitesmoke;
}
.w1{
width: 50%;
text-align: left;
padding: 5vw;
}
.w2{
width: 50%;
text-align: left;
padding: 5vw;
border-left-style: solid;
border-width: thin;
}
.w1 h1{
font-size: 3.3vw;
color: #f1554c;
}
.w1 p{
font-size: 2vw;
color:#0b2361;
}
.w2 h1{
font-size: 3.3vw;
color: #f1554c;
}
.w2 p{
font-size: 2vw;
color: #0b2361;
}
.done-btn{
background: none;
cursor: pointer;
font-size: 1.3vw;
padding: 1.3vw 5vw 1.3vw 5vw;
margin-top: 3vw;
color: #f1554c;
}
.hide-it{
position: absolute;
transition: 0.2s;
background-color: white;
height: 0;
width: 25vw;
position: fixed;
right: 3vw;
top:3vw;
color: white;
}
.hide1{
display: flex;
flex-direction: column;
}
.p1{
display: flex;
flex-direction: column;
padding-top: 6vw;
padding-left: 2.7vw;
transition: 0.1s;
visibility: hidden;
transition: 0.1;
}
.hide1-btn{
border: none;
background: none;
font-size: 1.4vw;
text-align: left;
padding: 10px;
}
.p2{
display: flex;
flex-direction: column;
padding-top: 6vw;
padding-left: 2.7vw;
transition: 0.1s;
visibility: hidden;
transition: 0.9;
}
.hode-1{
font-size: 1.4vw;
text-align: left;
padding: 10px;
}
.hide-span{
font-size: 1.4vw;
text-align: left;
padding: 10px;
}
.active{
visibility: visible;
height: 34vw;
z-index: 2;
color: black;
}
.active2{
visibility: visible;
}
.btn.active1{
background-color: white;
width: .7vw;
height: .7vw;
transform: rotate(0deg);
border-radius: 4px;
}
#nav-icon1 {
width: 4vw;
height: 3vw;
-webkit-transform: rotate(0deg);
-moz-transform: rotate(0deg);
-o-transform: rotate(0deg);
transform: rotate(0deg);
-webkit-transition: .5s ease-in-out;
-moz-transition: .5s ease-in-out;
-o-transition: .5s ease-in-out;
transition: .5s ease-in-out;
cursor: pointer;
}
#nav-icon1 span {
display: block;
position: absolute;
height: 3px;
width: 3.5vw;
background: black;
border-radius: 9px;
opacity: 1;
left: 0;
-webkit-transform: rotate(0deg);
-moz-transform: rotate(0deg);
-o-transform: rotate(0deg);
transform: rotate(0deg);
-webkit-transition: .25s ease-in-out;
-moz-transition: .25s ease-in-out;
-o-transition: .25s ease-in-out;
transition: .25s ease-in-out;
}
#nav-icon1 span:nth-child(1) {
top: 0px;
}
#nav-icon1 span:nth-child(2) {
top: 18px;
}
#nav-icon1 span:nth-child(3) {
top: 36px;
}
#nav-icon1.open span:nth-child(1) {
top: 18px;
-webkit-transform: rotate(135deg);
-moz-transform: rotate(135deg);
-o-transform: rotate(135deg);
transform: rotate(135deg);
}
#nav-icon1.open span:nth-child(2) {
opacity: 0;
left: -60px;
}
#nav-icon1.open span:nth-child(3) {
top: 18px;
-webkit-transform: rotate(-135deg);
-moz-transform: rotate(-135deg);
-o-transform: rotate(-135deg);
transform: rotate(-135deg);
}
.send-me{
height: 840px;
background-color: #e9ecf4;
display: flex;
justify-content: center;
align-items: center;
}
.send-top h1{
font-size: 3.3vw;
text-align: center;
color: #f1554c;
}
.send-top p{
font-size: 1.7vw;
color:#0b2361;
text-align: center;
margin-top: -2vw;
padding-bottom: 5vw;
}
.send-inputs{
display: flex;
justify-content: space-between;
width: 50vw;
}
.send-inputs input{
outline: none;
padding: 1vw 0vw 1vw 0vw;
width: 21vw;
height: 2vw;
font-size: 1.3vw;
border-bottom: 5px solid black;
border-width: thin;
background: none;
border-top: none;
border-left: none;
border-right: none;
}
.send-inputs label{
font-size: 1vw;
}
.l{
display: flex;
flex-direction: column;
}
.send-final{
padding-top: 4vw;
width: 50.5vw;
display: flex;
justify-content: center;
align-items: center;
flex-direction: column;
}
.send-final input{
background: none;
font-size: 1.3vw;
width: 100%;
outline: none;
padding: 1vw 0vw 1vw 0vw;
height: 2vw;
border-width: thin;
border-bottom: 5px solid black;
background: none;
border-width: thin;
border-top: none;
border-left: none;
border-right: none;
}
.shoot{
border-width: thin;
font-size: 1.3vw;
border-color: black;
margin-top: 4vw;
width: 20vw;
height: 4vw;
background: none;
cursor: pointer;
font-size: 1.3vw;
padding: 1.3vw 5vw 1.3vw 5vw;
}
.end-1{
background-color: #0b2361;
height: 830px;
display: flex;
justify-content: center;
align-items: center;
}
.end-container{
display: flex;
flex-direction: column;
width: 80vw;
}
.end-info{
border-width: thin;
border-bottom: 5px solid #e9ecf4;
background: none;
border-width: thin;
border-top: none;
border-left: none;
border-right: none;
display: flex;
}
.e2{
display: flex;
flex-direction: column;
font-size: 1.5vw;
color: #e9ecf4;
padding: 4vw 0vw 8vw 0vw;
}
.e2 span{
padding-top: 1.5vw;
}
#ll{
margin-top:-3vw;
padding-right: 19vw;
}
.end-link{
color: #e9ecf4;
padding-top: 3vw;
} 
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我认为你需要的是一个交叉点观察者。交叉口观察器允许您“观察”目标并在目标可见时做出反应。
我创建了一个小例子来演示这一点。我们正在观察
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