style.css

@font-face {
    font-family: Liberation Mono;
    src: url("LiberationMono-Regular.woff2") format("woff2"), url("LiberationMono-Regular.ttf") format("truetype");
}

html {
    height: 100vh;
}

body {
    color: #93a1a1;
    background-color: #002b36;
    font-family: Liberation Mono, SFMono-Regular, Consolas, Menlo, Courier, monospace;
    text-align: center;
    height: 100%;
    display: flex;
    flex-direction: column;
    margin: 0px;
}

fieldset {
    flex-grow: 1;
    margin: 1em;
    border-color: #586e75;
    border-width: medium;
    border-style: solid;
    display: flex;
    flex-direction: column;
}

form {
    flex-grow: 1;
}

legend {
    margin: 0 auto;
    padding: 0 1em 0 1em;
    color: #93a1a1;
    font-weight: bold;
}

#pi {
    color: #93a1a1;
    text-decoration: none;
    position: absolute;
    right: 0.4em;
    bottom: 0px;
}

a:link {
    color: #268bd2;
}

a:hover {
    color: #2aa198;
}

a:visited {
    color: #6c71c4;
}

input[type=text],
input[type=number] {
    border-color: #eee8d5;
    background-color: #fdf6e3;
    color: #586e75;
    border-style: solid;
    font-family: inherit;
    margin: 0.1em 0 0.1em 0;
}

input[type="file"] {
    color: #93a1a1;
    font-family: Liberation Mono, SFMono-Regular, Consolas, Menlo, Courier, monospace;
    font-size: initial;
}

input[type="file"]::file-selector-button {
    border: 0;
    padding: 0;
    color: #268bd2;
    text-decoration: underline;
    background-color: inherit;
    font-family: Liberation Mono, SFMono-Regular, Consolas, Menlo, Courier, monospace;
    font-size: initial;
}

input[type="file"]::file-selector-button:hover {
    border: 0;
    padding: 0;
    color: #2aa198;
    text-decoration: underline;
    background-color: inherit;
    font-family: Liberation Mono, SFMono-Regular, Consolas, Menlo, Courier, monospace;
    font-size: initial;
}

table {
    margin: 0 auto;
    border-collapse: collapse;
}

td:first-child {
    text-align: right;
    border-right-color: #586e75;
    border-right-width: medium;
    border-right-style: solid;
    padding-right: 1em;
}

td:last-child {
    text-align: left;
    padding-left: 1em;
}

tr {
    border-bottom-color: #586e75;
    border-bottom-width: thin;
    border-bottom-style: solid;
}

tr:last-child {
    border: none;
}