I am dealing with a website that has a complex structure of elements and CSS styles, with many elements having `position:absolute` and `top:0` styles applied.
There are multiple nested divs due to inheriting the website from a previous owner.
I am wondering if there is a way to insert a div element at the top of the page and slide down all other elements without needing to change any other CSS styles. Essentially, inserting a header with text that would "override" the existing styles...
To achieve the desired effect of having an element at the top and moving others down accordingly, a simple JavaScript function can be used. Here's an example:
$(function() {
var item = $(".item");
var itemHeight = item.outerHeight();
$(".middle").css({
"top": itemHeight + "px"
});
$(".bottom").css({
"top": itemHeight * 2 + "px"
});
});body {
margin: 0;
}
main {
height: 100vh;
min-height: 500px;
width: 100%;
background: DarkOrchid;
}
.top, .middle, .bottom {
height: 100px;
width: 85%;
position: absolute;
top: 0;
left: 50%;
transform: translateX(-50%);
display: flex;
justify-content: center;
align-items: center;
color: #fff;
font-family: sans-serif;
}
.top {
background: goldenrod;
}
.middle {
background: royalblue;
}
.bottom {
background: tomato;
}<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<main>
<div class="top item">this is the top one</div>
<div class="middle item">this is the middle</div>
<div class="bottom item">this is the bottom one</div>
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