I've CSS defined to add watermark in the page. with the code below :
body:before{
content: '';
position: fixed;
top: 0;
bottom: 0;
left: 0;
right: 0;
z-index: -1;
color: #0d745e;
font-size: 100px;
font-weight: 500px;
display: grid;
justify-content: center;
align-content: center;
opacity: 0.2;
transform: rotate(-45deg);
}
what I need to do is create a JavaScript function to edit the content properties to enter a value. how to achieve that. Thanks