<label class="box">
	<input type="text" class="box__input" placeholder="&nbsp;">
	<div class="box__content">Это <span class="color-red">подсказка</span></div>
</label>
<label class="box">
	<input type="text" class="box__input" placeholder="&nbsp;">
	<div class="box__content">Это <span class="color-red">подсказка</span> 2</div>
</label>
body {
	padding: 0;
	margin: 0;
	min-height: 100vh;
	display: flex;
	justify-content: center;
	align-items: center;
	flex-direction: column;
	font-size: 25px;
}

.color-red {
	color: red;
}

.box {
	display: inline-block;
	position: relative;
	z-index: 0;
	margin: 10px;
}

.box__input {
	background-color: yellow;
	border: 1px solid #000;
	height: 50px;
	box-sizing: border-box;
	padding: 0 20px;
	color: #000;
	width: 300px;
	font-size: 20px;
}

.box__content {
	box-sizing: border-box;
	padding: 0 20px;
	position: absolute;
	left: 0;
	top: 50%;
	transform: translateY(-50%) translateX(0);
	opacity: 0.8;
	pointer-events: none;
	color: #000;
	transition: 0.3s all;
	transform-origin: left center;
}

.box__input:focus ~ .box__content,
.box__input:not(:placeholder-shown) ~ .box__content {
	transform: translateY(-200%) translateX(0) scale(0.6);
}

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