timepicker.css

@import url('https://rsms.me/inter/inter-ui.css');

:root {
    font-size: 16px;
}

* {
    box-sizing: border-box;
    font-family: 'Inter UI', sans-serif;
}

body {
    margin: 2em;
}

*:focus {
    outline: none;
}

input[type="time"] {
    font-size: 1.5rem;
    border: none;
    background-color: #eee;
    padding: 0.1em 0.4em;
    border-radius: 10px;
    margin-left: 1rem;
}

input[type="checkbox"] {
    margin-right: 0.7em;
}

h1 {
    font-size: 1.5em;
}

body.dark {
    color: white;
}

body:not(.dark) {
    background-color: rgba(255,255,255,0.5);
}

body.dark input[type="time"] {
    background-color: rgba(0, 0, 0, 0.37);
    color:  white;
}

body.dark button:not([type="submit"]) {
    opacity:  .5;
}

form > * {
    display: block;
    margin-bottom: 1em;
}

button {
    border-radius: 10px;
    border: none;
    font-size: 1.1em;
    padding: 0.2em 0.8em;
    cursor: pointer;
    background: #eee;
    margin-right: 0.3em;
}

button[type="submit"] {
    background: rgb(44, 226, 138);
}

label {
    display: flex;
    align-items: center;
}