My vertical timeline is dynamically generated with <li> elements that have an ::after pseudo-class.
I want to style specific circular elements after the timeline creation (only changing the color of the circles). I am struggling to add a class to individual elements post-creation.
After reviewing @RCC's response: The code provided selects the elements but doesn't change their colors. Is there a way to style the ::after class of certain list elements using JavaScript? Any insights would be helpful!
myArr = ['elem1', 'elem3', 'elem8']
for (var i = 0; i < myArr.length; i++) {
var elem=document.getElementById(myArr[i])
console.log(elem)
elem.className += ".timeline ul li.newstyle::after {background:#3887be}";
}*,
*::before,
*::after {
margin: 0;
padding: 0;
box-sizing: border-box;
}
body {
font: normal 16px/1.5 "Helvetica Neue", sans-serif;
background: #ffffff;
color: #404040;
overflow-x: hidden;
padding-bottom: 50px;
}
/* INTRO SECTION
–––––––––––––––––––––––––––––––––––––––––––––––––– */
.intro {
background: #FFFFFF;
padding: 100px 0;
}
.container {
width: 90%;
max-width: 1200px;
margin: 0 auto;
text-align: center;
}
h1 {
font-size: 2.5rem;
}
/* TIMELINE
–––––––––––––––––––––––––––––––––––––––––––––––––– */
.timeline ul li {
list-style-type: none;
position: relative;
width: 6px;
margin: 0 auto;
padding-top: 50px;
background: #404040;
}
.timeline ul li::after {
content: '';
position: absolute;
left: 50%;
bottom: 0;
transform: translateX(-50%);
width: 30px;
height: 30px;
border-radius: 50%;
background: inherit;
}
.timeline ul li div {
position: relative;
bottom: 0;
width: 400px;
padding: 15px;
background: #FFFFFF;
}
.timeline ul li div::before {
content: '';
position: absolute;
bottom: 7px;
width: 0;
height: 0;
border-style: solid;
}
.timeline ul li:nth-child(odd) div {
left: 45px;
}
.timeline ul li:nth-child(odd) div::before {
left: -15px;
border-width: 8px 16px 8px 0;
border-color: transparent transparent transparent transparent;
}
.timeline ul li:nth-child(even) div {
left: -439px;
}
.timeline ul li:nth-child(even) div::before {
right: -15px;
border-width: 8px 0 8px 16px;
border-color: transparent transparent transparent transparent;
}
/* LEFT JUSTIFY
–––––––––––––––––––––––––––––––––––––––––––––––––– */
.timeline ul li {
margin-left: 20px;
}
.timeline ul li div {
width: calc(100vw - 91px);
}
.timeline ul li:nth-child(even) div {
left: 45px;
}
.timeline ul li:nth-child(even) div::before {
left: -15px;
border-width: 8px 16px 8px 0;
}<section class="intro">
<div class="container">
<h1>Vertical Timeline ↓</h1>
</div>
</section>
<section class="timeline">
<ul>
<li id='elem1'>
<div>
<time>1934</time> At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium
</div>
</li>
<li id='elem2'>
<div>
<time>1937</time> Proin quam velit, efficitur vel neque vitae, rhoncus commodo mi. Suspendisse finibus mauris et bibendum molestie. Aenean ex augue, varius et pulvinar in, pretium non nisi.
</div>
</li>
<li id='elem3'>
<div>
<time>1940</time> Proin iaculis, nibh eget efficitur varius, libero tellus porta dolor, at pulvinar tortor ex eget ligula. Integer eu dapibus arcu, sit amet sollicitudin eros.
</div>
</li>
<li id='elem4'>
<div>
<time>1943</time> In mattis elit vitae odio posuere, nec maximus massa varius. Suspendisse varius volutpat mattis. Vestibulum id magna est.
</div>
</li>
<li id='elem5'>
<div>
<time>1946</time> In mattis elit vitae odio posuere, nec maximus massa varius. Suspendisse varius volutpat mattis. Vestibulum id magna est.
</div>
</li>
<li id='elem6'>
<div>
<time>1956</time> In mattis elit vitae odio posuere, nec maximus massa varius. Suspendisse varius volutpat mattis. Vestibulum id magna est.
</div>
</li>
<li id='elem7'>
<div>
<time>1957</time> In mattis elit vitae odio posuere, nec maximus massa varius. Suspendisse varius volutpat mattis. Vestibulum id magna est.
</div>
</li>
<li id='elem8'>
<div>
<time>1967</time> Aenean condimentum odio a bibendum rhoncus. Ut mauris felis, volutpat eget porta faucibus, euismod quis ante.
</div>
</li>
</ul>
</section>