body {
    background-image: url(bg.jpg);
    background-size: cover;
    background-repeat: no-repeat;
    background-position: center;
    display: flex;
    justify-content: center;
    align-items: center;
}
p{
    position: relative;
    color: black;
    font-size: 20px;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    left: 5px;
}
.topHeader{
    font-size: 30px;
    position: relative;
    left: 30px;
    bottom: 40px;
    font-family: Comic Sans MS;
}
.formBox{
    display: flex;
    position: relative;
    padding: 80px;
    width: 400px;
    height: 450px;
    background: transparent;
    justify-content: center;
    border: 2px solid white;
    border-radius: 20px;
    backdrop-filter: blur(3px); /* 模糊程度 */
}
.formContainer{
    display: flex;
    flex-direction: column;
}
.inputText{
    height: 40px;
    width: 100%;
    border: none;
    outline: none;
    border-radius: 30px;
    padding: 0 0 0 20px;
    opacity: 90%;
    color: black;
}
::-webkit-input-placeholder{
    color: rgb(49, 48, 48);
}
i{
    position: relative;
    top: -20px;
    right: 20px;
}
#submitButton{
    height: 40px;
    width: 100%;
    border: none;
    outline: none;
    border-radius: 30px;
    color: white;
    font-family: Comic Sans MS;
    background-color: black;
}
#ForgotPW{
    position: relative;
    color: yellow;
    font-size: 20px;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    left: 35px;
}