文本闪烁效果无法正常工作我该如何修复此问题

Question

我想在给定的文本上添加一个闪光效果，所以我有了这个：

const prepareCaption = document.querySelector(".prepareCaption");
function Shine() {
prepareCaption.classList.remove("shine");
setTimeout(() => prepareCaption.classList.add("shine"), 10); 
}

function show() {
prepareCaption.style.top = '5vh';
prepareCaption.style.opacity = '1';
}

setTimeout(() => show(), 2500);
setTimeout(() => Shine(), 10000);

.prepareCaption {
position: relative;
font-size: 3em;
filter: drop-shadow(0px 0px 5px #100021) drop-shadow(1px .1em 1px #0d021a);
text-align: center;
width: 100%;
color: #f50035;
margin: 0 auto;
opacity: 0; 
top: -2.5vh;
transition: top 0.3s ease-in-out, opacity 0.3s ease-in-out;
}
.shine {
background-image: linear-gradient(-40deg, transparent 0%, transparent 40%, #fff 50%, transparent 60%, transparent 100%);
background-position: -100%, 0%;
background-repeat: no-repeat, repeat;
background-size: 10em, auto;
-webkit-text-fill-color: transparent;
-webkit-background-clip: text;
animation: shine 2s ease-in-out 1;
}
@-webkit-keyframes shine {
from { background-position: -100%, 0%; }
to { background-position: 200%, 0%; }
}

<div class="prepare-container">
<p class="prepareCaption">This should be shining</p>
</div>

正如您所看到的，它不能正常工作，并且在添加shine类后文本立即隐藏。

所需的行为是在红色文本上照射一次明亮的闪光效果。

我该怎么解决这个问题？

Answer 1

您只需要添加一个与文本颜色相同的背景颜色。

const prepareCaption = document.querySelector(".prepareCaption");
function Shine() {
prepareCaption.classList.remove("shine");
setTimeout(() => prepareCaption.classList.add("shine"), 10);
}
function show() {
prepareCaption.style.top = '5vh';
prepareCaption.style.opacity = '1';
}

setTimeout(() => show(), 2500);
setTimeout(() => Shine(), 10000);

.prepareCaption {
position: relative;
font-size: 3em;
filter: drop-shadow(0px 0px 5px #100021) drop-shadow(1px .1em 1px #0d021a);
text-align: center;
width: 100%;
color: #f50035;
margin: 0 auto;
opacity: 0;
top: -2.5vh;
transition: top 0.3s ease-in-out, opacity 0.3s ease-in-out;
}
.shine {
/* currentColor = color property */
background-color: currentColor;
background-image: linear-gradient(-40deg, transparent 0%, transparent 40%, #fff 50%, transparent 60%, transparent 100%);
background-position: -100% 0%;
background-repeat: no-repeat;
background-size: 60%;
-webkit-text-fill-color: transparent;
-webkit-background-clip: text;
animation: shine 4s ease-out 1 forwards;
}
@keyframes shine {
from {
background-position: -100% 0%;
}
to {
background-position: 300% 0%;
}
}

<div class="prepare-container">
<p class="prepareCaption">This should be shining</p>
</div>