style.css

@import url('https://fonts.googleapis.com/css2?family=Ubuntu:wght@700&display=swap');
*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Ubuntu', sans-serif;
    user-select: none;
}
body{
    background-image: url("https://th.bing.com/th/id/R.b511c4d0daf3ce9734463992f173237e?rik=whVrG0GI7OqpCQ&riu=http%3a%2f%2fwww.hdwallpapers.in%2fdownload%2fblur_colors-2560x1440.jpg&ehk=%2fn0IvlXsVY2E95v2egUjymgH84fRcg8hshKRS1M2pp4%3d&risl=&pid=ImgRaw&r=0");
    color: white;
}
table{
    box-shadow: 5px 10px 1px rgba(128, 128, 128, 0.938);
}
#myVideo {
    z-index: -1;
    position: fixed;
    right: 0;
    bottom: 0;
    min-width: 100%; 
    min-height: 100%;
}  
.container{
    /* border:1px solid red; */
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}
table tr td{
    padding: 8px;
    text-align: center;
    background-color: white;
    border-bottom: 4px solid black;
}
table{
    background-image: url("https://th.bing.com/th/id/OIP.smgeF0syl45KXes5hVzVbgHaEK?pid=ImgDet&rs=1");
    background-size: cover;
    border-spacing: 10px;
    border: 2px groove black;
    border-radius: 25px;
    margin: 10px;
    empty-cells: hide;
}
table input{
    background-color: rgba(128, 128, 128, 0.411);
    border-bottom: 1px groove black;
    color: rgb(0, 0, 0);
    border-top: none;
    border-left: none;
    border-right: none;
    font-size: x-large;
    padding: 5px;
    border-radius: 5px;
    text-align: end;
    width: 100%;
    cursor: not-allowed;
}
.round{
    border-radius: 40px;
}
table td:nth-child(4){
    border: none;
}
#dot{
    border-radius: 30px;
}
button{
    font-size: 20px;
    padding: 10px 20px;
    border-radius: 40px;
    border-style: none;
}
input:focus{
    outline: none;
    border: none;
}
input:active{
    outline:0;
    border:0;
}
table th{
    color: tomato;
    font-size: x-large;
    text-shadow: 1px 2px 1px rgb(255, 0, 234);
    animation: clrchng 2s infinite linear;
}
.color{
    background-color: rgb(208, 255, 0);
}
#gif{
    position: absolute;
    left: 90px;
}
@keyframes clrchng {
    0%,100%{color: red;}
    50%{color: blue;}
}
/* another animation */
@keyframes change {
    0%,100%{
        filter: hue-rotate(0deg);
    }
    50%{
        filter: hue-rotate(360deg);
    }
}