style.css

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
   
}

body{
    width: 100%;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgb(240, 238, 238);
    background-image: linear-gradient(to right, #8360c3, #2ebf91);
    background-repeat: no-repeat !important;
    font-family:Verdana, Geneva, Tahoma, sans-serif
}

.box {
    text-align: center;
    background-image: linear-gradient( 95.2deg, rgba(173,252,234,1) 26.8%, rgba(192,229,246,1) 64% );
    padding: 30px;
    border-radius: 2px;
    box-shadow: 5px 0px 16px rgb(153, 165, 255);
}


#emoji {
    display: block;
}

span#emoji{
    font-size: 80px;
    vertical-align: middle;
    line-height: 2;
}

#btn {
    padding: 5px 20px;
    border-radius: 5px;
    border: none;
    background-color: black;
    color: white;
    font-weight: bold;
    margin-top: 5px;
}

.foot{
    position: fixed;
    bottom: 0%;
    font-weight: bold;
    font-size: 18px;
}

#love{
    color: red;
    font-weight: bold;
}

.foot >p{
    color: white;
    margin-bottom: 15px;
}