JSFiddle - React, Tailwind, and code Playground

HTML

<div class="form-fields-group">
    <input type="text" id="name" class="form-fields-input" placeholder="Введите название группы" required>
    <label class="form-fields-group-label" for="name">Название Группы</label>
    <div class="bg"></div>
</div>

CSS

.form-fields-group {
    position: relative;
}

.form-fields-group .bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #EAEAEE;
    z-index: -1;
}

.form-fields-group-label {
    position: absolute; top: 5px; left: 16px;
    font-size: 13px;
    color: #27252a;
    font-family: 'Roboto', sans-serif;
    padding-top: 5px;
}

.form-fields-input {
    width: 100%;
    padding: 30px 142px 8px 16px;
    border: none;
    border-radius: 5px;
    font-family: 'Roboto', sans-serif;
    font-size: 15px;
    background: transparent;
}

.form-fields-input:focus ~ .form-fields-group-label,
.form-fields-input:valid ~ .form-fields-group-label {
    color: #00f;
}

.form-fields-input:focus ~ .bg,
.form-fields-input:valid ~ .bg{
    background: red;
}