style.css

* {
    font-family: Arial, Helvetica, sans-serif;
}

body {
    padding: 20px;
}

#app-ctn {
    width: 450px;
}

#main-title {
    margin-bottom: 25px;
}

#upload-ctn {
    margin: 15px 0px;
}

#image-ctn {
    border: 1px solid #333;
    position: relative;
    height: 250px;
}

#loaded-image {
    position: relative;
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.label {
    font-weight: bold;
    font-size: 15px;
}

#controls-ctn {
    text-align: right;
}

.tensor-btn {
    opacity: 0.7;
    overflow: hidden;
    font-weight: 700;
    font-size: 16px;
    line-height: 20px;
    border-radius: 8px;
    padding: 13px 22px;
    outline: none;
    cursor: pointer;
}

.tensor-btn:hover {
    opacity: 1;
}

.cancel-btn {
    background: none;
    color: #ff6f00;
    border: 1px solid #ff6f00;
}

.validation-btn {
    background: linear-gradient(to right, #ff6f00, #ff9100);
    color: #fff;
    border: none;
}