html, body {
    height: 100%;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    margin: 0;
    padding: 0;
    background: black;
    color: #f5f5f7;
}

.container {
    position: relative;
    top: 30%;
    transform: translateY(-30%);
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
}

h1 {
    font-size: 36px;
    margin: 5px auto;
}

h1:nth-child(2) {
    margin-top: 40px;
}

button {
    border-color: transparent;
    color: black;
    cursor: context-menu;
    font-size: 17px;
    padding: 5px 10px;
    border-radius: 100px;
    margin-top: 50px;
}

span {
    font-style: italic;
}

#in {
    font-size: 27px;
    background: darkred;
    color: #f5f5f7;
    border-radius: 5px;
    padding: 0 3px;
}

#file-input {
    display: none;
}

#file-path {
    position: relative;
    cursor: pointer;
    background: transparent;
    color: #f5f5f7;
    font-size: 72px;
    font-style: normal;
    margin: 20px 10px;
    padding: 0 10px;
}

#file-path:before {
    content: "";
    position: absolute;
    bottom: 2px;
    left: 0;
    width: 100%;
    height: 1px;
    border-bottom: 3px dotted;
    background-image: linear-gradient(to right, red, orange, yellow, lightgreen, deepskyblue, pink, violet);
    -webkit-background-clip: border-box;
    border-color: transparent;
}