base.css

body {
    margin: 0;
    font-family: system-ui, BlinkMacSystemFont, Segoe UI, Roboto, Helvetica Neue, Arial, Noto Sans, Liberation Sans, sans-serif, Apple Color Emoji, Segoe UI Emoji, Segoe UI Symbol, Noto Color Emoji;
    font-size: 1rem;
    font-weight: 400;
    line-height: 1.5;
    color: #212529;
    text-align: left;
    background-color: #fff;
}

*, ::after, ::before {
    box-sizing: border-box;
}

html {
    font-family: sans-serif;
    line-height: 1.15;
    -webkit-text-size-adjust: 100%;
    -webkit-tap-highlight-color: transparent;
}

hr {
    box-sizing: content-box;
    height: 0;
    overflow: visible;
    unicode-bidi: isolate;
    margin-block-start: 0.5em;
    margin-block-end: 0.5em;
    margin-inline-start: auto;
    margin-inline-end: auto;
    border: 0;
    border-top: 1px solid rgba(0,0,0,.1);
}

[type=button], [type=reset], [type=submit], button {
    -webkit-appearance: button;
}
button, select {
    text-transform: none;
}
button, input {
    overflow: visible;
}
button, input, optgroup, select, textarea {
    margin: 0;
    font-family: inherit;
    font-size: inherit;
    line-height: inherit;
}

button {
    appearance: auto;
    writing-mode: horizontal-tb !important;
    text-rendering: auto;
    letter-spacing: normal;
    word-spacing: normal;
    line-height: normal;
    text-transform: none;
    text-indent: 0px;
    text-shadow: none;
    display: inline-block;
    text-align: center;
    align-items: flex-start;
    cursor: default;
    box-sizing: border-box;
    background-color: -internal-light-dark(rgb(239, 239, 239), rgb(59, 59, 59));
    margin: 0em;
    padding: 1px 6px;
    border-width: 2px;
    border-style: outset;
    border-color: buttonborder;
    border-image: initial;
}

a:-webkit-any-link {
    cursor: pointer;
    text-decoration: none;
}