Hi Vibhu Raghav,
you can do it with the help of CSS, adjust the opacity of the card and its color, if you want it not to be completely transparent, add a card class:
.cardContainer {
background-color: rgba(255, 255, 255, 0.5);
}
You adjust the opacity level with the help of these "0.5" values at the end of the background-color, just set yourself other values you are interested in.