Help me in solving FASH10 problem

help
,
1

My issue

I have already set the width to 90vw but why it is showing error

My code

// your code goes here
*{
    margin: 0;
    padding: 0;
    font-family: Arial, sans-serif;
}

a{
    color: black;
    font-weight: 550;
    text-decoration: none;
}

header{
    height: 60px;
    background-color: #806BDC;
    text-align: center;
}

.NavBar{
    padding-top: 18px;
}

#navbar-title{
    color: white;
    font-size: 25px;
}

.Items{
    padding-top: 15px;
    padding-bottom: 15px;
}

#item-table{
    width: 100%;
    text-align: center;
}

.Item-img{
    height: 64px;
}

.Item-tag{
    font-size: 14px;
}

.Item-tag:hover{
    color: #806BDC;
}

.Shopping-container{
    background-color: lightgrey;
    text-align: center;
    padding-bottom: 30px;
}

#shopping-time-img{
    margin-top: 30px;
    width: 90vw;
    height: 60vh;
}

/* Update the code below this comment */
.Sales-table{
   width:90vw;
   margin:auto ;
   border: 1px solid grey;
   border-collapse:collapse ;
   padding:12px;
}
.Sales-table-head{
    background-color: #806BDC;
}

Learning course: Projects using HTML / CSS
Problem Link: Style sales table Practice Problem in Projects using HTML / CSS