the-glorious-startpage/css/centeredbox/search-box.css

.searchBoxContainer {
	width: 100%;
	height: auto;
	top: 40%;

	opacity: 0;
	position: absolute;

	pointer-events: none;

	transition:
				opacity var(--transition-speed),
				top var(--transition-speed),
				pointer-events var(--transition-speed);
}

#searchBox {
	width: 350px;
	height: 48px;

	padding-left: 10px;
	padding-right: 10px;

	margin-bottom: 10px;

	/* Center horizontally */
	position: relative;
	left: 50%;
	transform: translateX(-50%);

	background: var(--base-bg);
	color: var(--base-color);
	text-align: center;
	font-family: roboto-bold, sans-serif;
	font-weight: 700;

	border: none;
	border-radius: 24px;

	transition: all var(--transition-speed);
	
	backdrop-filter: blur(var(--blur-strength));
}

#searchBox::placeholder {
	font-family: roboto-bold, fantasque-sans-mono, sans-serif;
	font-weight: 700;
}

#searchBoxContainer.showSearchBox {
	opacity: 1;
	top: 70%;
	pointer-events: initial;
}

@media screen and (max-width: 470px) {
	#searchBox {
		width: 50vw;
	}

	#searchBoxContainer.showSearchBox {
		opacity: 1;
		top: 65%;
		pointer-events: initial;
	}
}