backdrop filter alternative
main {
margin: 100px auto;
position: relative;
padding: 10px 5px;
background: hsla(0, 0%, 100%, .3);
font-size: 20px;
font-family: 'Lora', serif;
line-height: 1.5;
border-radius: 10px;
width: 60%;
box-shadow: 5px 3px 30px black;
overflow: hidden;
}
main::before {
content: '';
margin: -35px;
position: absolute;
top: 0;
right: 0;
bottom: 0;
left: 0;
filter: blur(20px);
z-index: -1;
}