body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
}

.container {
    display: flex;
    flex-direction: row;
    height: 100vh;
    width: 100%;
}

.left-section {
    width: 30%;
    padding: 10px;
    background-color: #f0f0f0;
}

.rectangle {
    background-color: #4CAF50;
    color: white;
    padding: 15px;
    margin: 10px 0;
    cursor: pointer;
    text-align: center;
}

.center-section {
    width: 40%;
    display: flex;
    justify-content: center;
    align-items: center;
}

.vertical-image {
    max-height: 90%;
    max-width: 100%;
}

.right-section {
    width: 30%;
    display: flex;
    flex-direction: column;
    align-items: left;
}

.image-container1 {
    margin: 10px 0;
    cursor: pointer;
    transition: transform 0.2s;
}
.image-container2 {
    margin: 100px 0;
    cursor: pointer;
    transition: transform 0.2s;
}
.image-container3 {
    margin: 0px 0;
    cursor: pointer;
    transition: transform 0.2s;
}
.image-container img {
    width: 100px;
    height: auto;
}

.image-container.active img {
    outline: 2px solid #4CAF50;
}

.overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    justify-content: center;
    align-items: center;
}

.overlay-content {
    background-color: white;
    padding: 20px;
    border-radius: 10px;
    text-align: center;
}

.close {
    cursor: pointer;
    font-size: 24px;
    float: right;
}