index.css

body{
    /* background-color: grey; */
    background-color:hsl(248, 15%, 11%);
    font-family:"Outfit";
    margin: 0;
    padding: 0;
    height: 100vh;
    width: 100vw;
    display: flex;
    justify-content: center;
    align-items: center;
}
header{
    /* color:hsl(251, 9%, 53%); */
    color: aliceblue;
    text-align: center;
    margin-bottom: 1em;
    font-size: 1.5em;
}
.qr{
    display: flex;
    /* justify-content: space-around; */
    flex-direction: column;
    height: 30em;
    width: 20em;
    background-color: hsl(247, 11%, 15%);
    border-radius: 2em;
}
.qr-image{
    height: 10em;
    width: 10em;
    background-color: aqua;
    /* padding: 10px; */
    /* border-radius: 10px; */
    margin: 4em auto 1em;
    /* background: url("https://api.qrserver.com/v1/create-qr-code/?size=150x150&data=Killer+Abhi"); */
    background-repeat: no-repeat;
}
.qr-request{
    text-align: center;
}
.qr-request input{
    height: 4em;
    width: 80%;
    font-size: 1.3em;
    border: none;
    border-radius: 0.5em;
    padding: 0em 1em;
    /* background-color: hsl(251, 9%, 53%); */
    background-color:hsl(248, 15%, 11%);
    color: aliceblue;
    outline: none;
    font-family: "JetBrains Mono", monospace;

}
.qr-request input::placeholder{
    color: hsl(127, 100%, 82%);
}
.qr-generate{
    text-align: center;
    margin-top: 3em;
}
.btn{
    width: 80%;
    margin: auto;
    height: 3em;
    border:none;
    border-radius: 0.5em;
    background-color: hsl(127, 100%, 82%);
    font-size: 1.5em;
    font-family: "JetBrains Mono", monospace;
  }
  .btn:hover{
    cursor: pointer;
    background-color:hsl(248, 15%, 11%) ;
    /* color: hsl(127, 100%, 82%); */
    color: aliceblue;
    font-family: "JetBrains Mono", monospace;
  }
  footer{
    color:hsl(251, 9%, 53%);
    text-align: center;
    margin-top: 1em;
  }