html, body {
    display: inline-block;
    justify-content: center;
    align-items: center;
    height: 100%;
    margin: 0 20px 0 20px;
}
body, div, p {
    padding: 0;
    margin: 0;
    outline: none;
    font-family: Roboto, Arial, sans-serif;
    font-size: 16px;
    color: #666;
}

h1 {
    display:flex;
    align-items: center;
    justify-content: center;
    margin: 0 0 20px 0;
    font-weight: 600;
}

h2 {
    margin: 20px 0 10px 0;
    font-weight: 600;
    color: #0055ee;
}

fieldset {
    background-color: #f9f9f9;
    border-radius: 8px;
    margin: 10px;
}

label {
    display: inline-block;
    width: 300px;
    margin: 4px;
}

input[type=text] {
    display: inline-block;
    width: 100px;
    color: #0055ee;
    font-size:15px;
    margin: 5px 10px 5px 0;
}

input[type=submit] {
    display: inline-block;
    width: 150px;
    border: 3px solid #0055ee;
    border-radius: 4px;
    font-weight: 600;
    margin: 20px;
    font-size:20px;
}

input[type=reset] {
    display: inline-block;
    width: 150px;
    border: 3px solid #ee0000;
    border-radius: 4px;
    font-weight: 600;
    margin: 20px;
    font-size:20px;
}


table,th {
    border: 3px solid;
    border-radius: 8px;
}


tbody tr:nth-child(odd) {
  background-color: #f9f9f9;
}

tbody tr:nth-child(even) {
  background-color: #f5f5f5;
}

td {
    padding: 5px 12px;
}