*{
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}
body{
    background-color: #343a40;
    color: rgb(255, 101, 183);
    font-family: Verdana, Geneva, Tahoma, sans-serif;
    display: block;
    flex-direction: column;
    text-align: center;
}


.header{
    margin-bottom: 20px;
    padding: 15px;
    font-style: oblique;
    font-size: larger;
    transition-duration: 0.3s;
}

.header:hover{
    letter-spacing: 3px;
    transition: 0.3s;
}


.text1{
    margin: 20px;
    padding:10px;
    border-radius: 10px;
    border: none;
    background-color: rgba(0, 0, 0, 0.646);
    color:blanchedalmond;
}

.sub{
    margin: 20px;
    padding: 9px;
    border-radius: 10px;
    border: none;
    background-color: rgb(228, 2, 66); 
    color: rgb(187, 251, 253);
    font-size:17px;
    box-shadow: crimson 3px;
    transition-duration: 0.4s;
}

.sub:hover{
    transition: all 0.3s;
    letter-spacing: 3px;
}



.box1 {
    margin: 0 auto 30px auto;
    padding: 30px;
    width: 50%;
    max-width: 600px;
    border: 3px solid salmon;
}


input::-webkit-outer-spin-button,
input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

input[type=number] {
  -moz-appearance: textfield;
  appearance: textfield;
}


@media only screen and (max-width: 600px) {
    .box1 {
        margin: 20px;
    }
}