body {
    background: url("/static/img/background.jpg")no-repeat;
    background-size: cover;
}

section {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    width: 100%;
}

.form-box {
    margin: auto;
    position: relative;
    width: 400px;
    height: 600px;
    background-color: red;
    background: transparent;
    display: flex;
    justify-content: center;
    align-items: center;
    border: 2px solid #fff;
    border-radius: 20px;
    backdrop-filter: blur(10px);
}

.inputbox {
    position: relative;
    margin: 30px 0;
    width: 310px;
    border-bottom: 2px solid #fff;
}

.inputbox label {
    position: absolute;
    top: 50%;
    left: 5px;
    transform: translateY(-50%);
    pointer-events: none;
    color: #fff;
    font-size: 20px;
    transition: .3s ease-in-out;
}

.inputbox input:focus~label,
.inputbox input:valid~label {
    font-size: 75%;
    top: -15px;
    pointer-events: none;
}

.inputbox input {
    width: 100%;
    background: transparent;
    border: none;
    outline: none;
    font-size: 20px;
    padding: 0 35px 0 5px;
    color: #fff;
}

button {
    font-size: 20px;
    width: 100%;
    height: 40px;
    border-radius: 40px;
    background: transparent;
    border-color: #fff;
    color: #fff;
}