index.css

@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@400;500;600&family=Ubuntu&display=swap');


html{
    box-sizing: border-box;
}

*,*::before,*::after {
    box-sizing: inherit;
    font-family: 'Montserrat', sans-serif;
    font-weight: bold;
    margin: 0;
    padding: 0;
}

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

.main{
    box-shadow: 0px 7px 29px 0px rgba(100, 100, 111, 0.2);
    height: 28.5rem;
    width: 19rem;
}

.main_center{
    padding: 1rem 1.5rem;
    text-align: center;
}

.main_center h1{
    line-height: 2rem;
    margin-bottom: 1rem;
}

.main_center label{
    color: rgb(54, 69, 79);
}

.main_center div input{
    margin-top: 1rem;
    width: 12rem;
    height: 2.5rem;
    padding: 2px 5px;
    box-shadow: 0px 8px 24px rgba(149, 157, 165, 0.2);
    border: none;
    border-bottom: 2px solid rgb(211, 211, 211);
    border-radius: 2px;
}

.main_center div input:hover{
    border: 2px solid rgba(149, 157, 165, 0.2);
}

.main_center-qrcode{
    margin-top: 1rem;
    margin-bottom: 2rem;
}