.keyword-button {
    background-color: rgba(240, 240, 240, 1);    
    color: rgba(106, 106, 106, 1)
    /* border: rgb(240, 240, 240); */
    /* border-radius: 15px; */
}

.card {
    max-width: 50rem;
}
.keyword-button.focus {
    background-color: rgba(220, 245, 227, 1);    
    box-shadow: none;
    /* border: rgb(240, 240, 240); */
    /* border-radius: 15px; */
}

.btn-badge {
    background-color: rgb(60, 60, 60);
    width: 30px;
    height: 30px;
    border-radius: 50%;
    display: inline-block;
    margin: 0.05rem;
    padding: 0.02rem;
    text-align: center;
    vertical-align: middle;
}
.badge-text{
    position:relative;
    top: 0.1rem;
    color: rgba(240, 240, 240, 1);
}


.biglogo{
    /* Location of the image */
    background-image: url('http://ai.ntu.edu.tw/wp-content/uploads/2019/07/bn-1500x430.jpg'); 
    min-height: 25rem;/*395.47px;*/
    /*min-width: 1378px; */
    background-size: contain;
    
    /* Image is centered vertically and horizontally at all times */
    background-position: center center;
    
    /* Image doesn't repeat */
    background-repeat: no-repeat;
    
    /* Makes the image fixed in the viewport so that it doesn't move when 
        the content height is greater than the image height */
    background-attachment: fixed;
    
    /* This is what makes the background image rescale based on its container's size */
    background-size: cover;
    
    /* Pick a solid background color that will be displayed while the background image is loading */
    background-color:#464646;
    
    /* SHORTHAND CSS NOTATION
        * background: url(background-photo.jpg) center center cover no-repeat fixed;
        */
}