styles.css

* {
    --purple-color: rgb(39, 0, 181);
}


body {
    margin-top: 200px;
    text-align: center;
    background-color: #131516;
}
.image-preview {
    width: 400px;
    height: 400px;
    min-height: 100px;
    border: 3px solid var(--purple-color);
    margin-top: 15px;
    display: flex;
    justify-content: center;
    overflow: hidden;
    margin: 0 auto;
    border-radius: 10px;
}
.image-preview-image {
    width: 100%;
    display: none;
    object-fit: fill;
}
.image-preview-default-text {
    margin-top: 130px;
    display: solid;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}
.image-upload-button {
    font-size: 1.17em;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    width: 80%;
    height: 40px;
    border-radius: 5px;
    border-style: none;
    font-weight: bold;
}
.model-output {
    margin-bottom: 10px;
}

#button-and-input-container {
    display: flex;
    flex-direction: column;
    margin: 0 auto;
    margin-top: 10px;
    justify-content: space-around;
    align-items: center;
    width: 400px;
    min-height: 150px;
    background-color: var(--purple-color);
    border-radius: 5px;
}

#nav-bar {
    position: fixed;
    top: 0;
    left: 0;
    background-color: var(--purple-color);
    width: 120em;
    display: flex;
}

#web-title {
    padding-left: .3em;
    color: white;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

#input-label {
    color: white;
    font-weight: bold;
    font-size: 1.2em;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}