style.css

@import url('https://fonts.googleapis.com/css2?family=Muli&display=swap');

*{
    box-sizing: border-box;
}

body{
    min-height: 100vh;
    margin: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    overflow-x: hidden;
    justify-content: space-evenly;
    font-family: 'Muli',sans-serif;
  background: linear-gradient(#e91e63,#1196f3);
;

    position: relative;
}

body h2{
    position: absolute;
    top:3rem;
    text-align: center;
    padding: 0 2rem;
    word-spacing: 4px;
}

.container{
    width: 320px;
    height: 380px;
    max-width: 800px;
    margin: auto;
   background-color: #ffb923;
    padding: 3rem 2rem;
    text-align: center;
    border-radius: 17px;
    
}

    
 
input[type="text"] {
  width: 270px;
  height: 45px;
  font-size: 18px;
  padding: 0 5px;
  border: 1px solid #ccc;
  border-radius: 10px;
  box-sizing: border-box;
  display: flex;
}

input[type="text"]:focus {
  border: 1px solid #555;
  outline: none;
}

button{
 box-sizing: border-box;
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  width: 180px;
  margin: 0 auto;
  padding: 3%;
  background: #2979ff;
  border: none;
  border-radius: 3px;
  font-size: 17px;
  border-top-style: none;
  border-right-style: none;
  border-left-style: none;
  color: #fff;
  cursor: pointer;
}
 button:hover {
  background: rgba(0, 134, 191, 1);
}
  .contQr {
    margin: auto;
    width: 350px;
    max-width: 100%;
}

.qrImage {
    background-color: #ffffff;
    padding: 15px;
    border-radius: 4px;
    width: 250px;
    max-width: 100%;
    margin: auto;
    margin-top: 30px;
}

.qrImage img {
    width:70%;
}
#button {
  background-color: #ff0000;
  color: #ffffff;
  border: none;
  padding: 10px 20px;
  font-size: 16px;
  cursor: pointer;
}
a{
 position:fixed;
display:fixed ;
  top:89%;
  left:50%;
  transform:translate(-50%,-50%);
  background-color:red;
width:200px;
height:35px;
text-align:center;
  color:black;
  font-weight:1000;
  font-size:14vw;
  font-size:20px;
  padding-top:5px;
  border-radius:5px;

}
#fb{
position:fixed;
display:fixed ;
  top:95%;
  left:50%;
  transform:translate(-50%,-50%);
  background-color:red;
width:200px;
height:35px;
text-align:center;
  color:black;
  font-weight:1000;
  font-size:14vw;
  font-size:20px;
  padding-top:5px;
  border-radius:5px;
}