styles.css

body {
    background-color: whitesmoke;
}
.upload-container {
    margin-top: 2rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    border: 1px solid black;
    width: 350px;
    height: 200px;
    padding: 20px;
    margin: auto;
    box-shadow: 2px 2px black;
}
form {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

#file {
    border: 1px solid black;
    padding: 4px;
}

.instruction-container {
    display: flex;
    justify-content: center;
    align-items: center;
}

.buttonClass {
    margin-top: 1rem;
    height: 30px;
    background-color: #0275d8;
    color: white;
    border-radius: 20px;
}

.buttonClass:hover {
    cursor: pointer;
    box-shadow: 2px 5px black;
    background-color: white;
    color: black;
}
th,
td,
p,
input {
    font: 14px Verdana;
}
table,
th,
td {
    border: solid 1px black;
    border-collapse: collapse;
    padding: 2px 3px;
    text-align: center;
}
th {
    font-weight: bold;
}

.data-container {
    display: flex;
    justify-content: center;
    align-items: center;
}