style1.css

*{
    font-family: Arial, Helvetica, sans-serif;
    margin: 0px;
    padding: 0px;
    box-sizing: border-box;
}
body{
    background-image: url(birthday\ setting.jpg);
    height: 100vh;
    width: 100wh;
    background-size: cover;
    background-repeat: no-repeat;
    display: flex;
    justify-content: center;
    align-items: center;
}
@keyframes container {
    0% {
        transform: translateY(0) scale(1);
        box-shadow: 0 0 5px rgba(0, 0, 0, 0.3);
    }
    50% {
        transform: translateY(-20px) scale(1.1);
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.5);
    }
    100% {
        transform: translateY(0) scale(1);
        box-shadow: 0 0 5px rgba(0, 0, 0, 0.3);
    }
}

   
.container{
    border: 10px double #7ab5e9;
    background-color:#f5e5d6;
    position: absolute;
    height: 300px;
    width: 460px;
    border-radius: 30%;
    display: flex;
    justify-content: center;
    align-items: center;
    position: absolute;
    animation: container 2s infinite;

    
}
.container:hover{
    border: 8px dashed #c15d24 ;
    transition: all 0.1s;
    animation-play-state: paused;
    transform: translateY(-20px) scale(1.1);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.5);

}
.data{
    position: absolute;
}
.data h1{
    position: relative;
    left: 12px;
}
#person{
    position:relative;
    top: 26px;
   font-size: 1.3em;
   font-weight: 200;
}
#DOB{
    position: relative;
    top: 27px;
     margin: 20px;
     font-size: 20px;
     font-weight: 200;
}
#dob-input{
    cursor: pointer;

}
#start{
    height: 50px;
    width: 150px;
    border: 2px solid black;
    border-radius: 25%;
    font-weight: bolder;
    font-size: 1.25em;
    position: relative;
    top: 34px;
    left: 90px;
    background-color: #386FA4;
    cursor: pointer;
    color:rgb(229, 241, 227) ;
}
#start:hover{
    background-color:  #133C55;
    transition-timing-function:ease-in-out  ;
    color:#f4e73f;
}
.countdown{
    position: relative;
    top:-25px;
    left: 3px;
    padding-top: 40px;
    text-align: center;
}
.time{
    font-size: 25px;
    text-align: center;
    display: inline-block;
    justify-content: center;
    align-items: center;
    margin-top: 10px;
    margin-right: 10px;
}