inputvalidation.css

body {
    width: 100%;
    height: 100vh;
    margin: 0;
    background-color: #38cee8;
    color: #0d1f2d;
    font-family: Tahoma;
    font-size: 16px;
  }

img{
    display: block;
    margin-left: auto;
    margin-right: auto;
    width: 10%;
    margin: 0 auto;
    padding: 20px 10px;
}

#search {
    position: absolute;
    right: 800px;
    width: 30px;
    height: 20px;
    top: 300px;
}

#add {
    position: absolute;
    right: 750px;
    width: 40px;
    height: 30px;
}

h1 {
    margin: 1em auto;
    text-align: center;
  }

p {
    padding: 10px;
    border-radius: 0 0 10px 10px;
    width: 30vw;
    max-width: 500px;
    min-width: 300px;
    margin: 0 auto;
    text-align: center;
}

#pay {
    display: block;
    width: 30%;
    margin: 1em auto;
    height: 2em;
    font-size: 1.1rem;
    background-color: #38cee8;
    border-color: #34252f;
    min-width: 300px;
  }