static/index.css

.loader {
    border: 16px solid #f3f3f3;
    border-top: 16px solid #3498db;
    border-radius: 50%;
    width: 120px;
    height: 120px;
    animation: spin 2s linear infinite;
    display: none;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);

}

body {
    padding: 0 10rem;
}

h1 {
    text-align: center;
}

#summaryForm {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
}

#youtubeLinkInput {
    width: 60%;
    padding: 2%;
    border: 2px solid #aaa;
    border-radius: 26px;
    margin-bottom: 20px;
}

button {
    width: 30%;
    padding: 2%;
    outline: 0;
    border: 2px solid #aae;
    border-radius: 26px;
    color: white;
    margin-bottom: 20px;
    cursor: pointer;
    background-color: rgb(62, 120, 245);
}

#summaryResult {
    font-size: 2.5rem;
    margin: 1rem;
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}