main.css

html {
    background-color: #ECFDF5;
    /* background: rgb(2,0,36);
    background: linear-gradient(90deg, rgba(2,0,36,1) 27%, rgba(47,61,1,1) 54%, rgba(0,212,255,1) 100%);
    height: 100%; */
} 

h1 {
    color: white;
    font-family: Arial, Helvetica, sans-serif;
    text-align: center;
}

.label {
    font-family: 'Karla';
    font-style: normal;
    font-weight: 800;
    font-size: 16px;
    line-height: 25px;

    
    letter-spacing: -0.025em;

    
    color: #020024;
}

#heading{
    font-family: 'Karla';
    font-style: normal;
    font-weight: 800;
    font-size: 40px;
    line-height: 25px;

    
    letter-spacing: -0.025em;

    
    color: #070720;
}


#container {
    height: 400px;
    width: 350px;
    position: absolute;
    left: 350px;
    top: 155px;
    background-color: #4ADF86;
    display: grid;
    grid-template-columns: 100px 1fr;
    grid-template-rows: 75px 75px 75px 75px ;
    grid-template-areas: 
    ". name"
    ". bill-amount"
    ". tip-percentage"
    ". tip-amount"
    ". total-bill"
    "btn btn"
    "btn2 btn2";
    margin: 0 auto;
    /* border: 5px solid #21694c; */
    border-radius: 10px;
    padding: 25px;
}

#result {
    height: 400px;
    width: 350px;
    position: absolute;
    left: 756px;
    top: 150px;
    background-color: #C0DFB1;
    display: grid;
    grid-template-columns: 100px 1fr;
    grid-template-rows: 75px 75px 75px 75px ;
    grid-template-areas: 
    ". name"
    ". bill-amount"
    ". tip-percentage"
    ". tip-amount"
    ". total-bill"
    "btn btn"
    "btn2 btn2";
    margin: 0 auto;
    margin-top: 5px;
    /* border: 5px solid #21694c; */
    border-radius: 10px;
    padding: 25px;
}

p{
    font-family: 'Karla';
    font-style: normal;
    font-weight: bold;

    
}

#datetime{
    font-family: 'Karla';
    font-style: normal;
    height: 25px;
    width: 250px;
    font-size: 15px;

    color: #000;

}

#resname{
    font-family: 'Karla';
    font-style: normal;
    height: 25px;
    width: 250px;
    font-size: 20px;
    text-align: justify;

    color: #000;

}

#billamt{
    font-family: 'Karla';
    font-style: normal;
    height: 25px;
    width: 250px;
    font-size: 20px;
    text-align: justify;

    color: #000;

}

#tipamt{
    font-family: 'Karla';
    font-style: normal;
    height: 25px;
    width: 250px;
    font-size: 20px;
    text-align: justify;

    color: #000;

}

#finalamt{
    font-family: 'Karla';
    font-style: normal;
    font-size: 20px;
    /* text-align: justify; */

    color: #000;

}

br {
    content: "";
    margin: 2em;
    display: block;
    font-size: 24%;
  }



#name {
    font-family: 'Karla';
    font-style: normal;
    font-weight: bold;
    grid-area: name;
    height: 25px;
    width: 250px;
    border-radius: 5px;
}

#bill-amount {
    font-family: 'Karla';
    font-style: normal;
    font-weight: bold;
    grid-area: bill-amount;
    height: 25px;
    width: 250px;
    border-radius: 5px;
}

#tip-percentage {
    font-family: 'Karla';
    font-style: normal;
    font-weight: bold;
    grid-area: tip-percentage;
    height: 25px;
    width: 250px;
    border-radius: 5px;
}

#tip-amount {
    font-family: 'Karla';
    font-style: normal;
    font-weight: bold;
    grid-area: tip-amount;
    height: 25px;
    width: 250px;
    border-radius: 5px;
    background-color: #fff;
}

#total-bill {
    font-family: 'Karla';
    font-style: normal;
    font-weight: bold;
    grid-area: total-bill;
    height: 25px;
    width: 250px;
    margin-bottom: 20px;
    border-radius: 5px;
    background-color: #fff;
}

#btn {
    
    font-family: 'Karla';
    font-style: normal;
    font-weight: bold;
    grid-area: btn;
    height: 25px;
    width: auto;

    display: flex;
    flex-direction: row;
    justify-content: center;
    align-items: center;
    padding: 9px 17px 9px 15px;
    
    background: #10B981;
    
    box-shadow: 0px 1px 2px rgba(0, 0, 0, 0.05);
    border: none;
    border-radius: 6px;

    
    font-family: 'Inter';
    font-style: normal;
    font-weight: 500;
    font-size: 16px;
    line-height: 24px;
    
    color: #020024;

    
}

#btn2 {
    font-family: 'Karla';
    font-style: normal;
    font-weight: bold;
    grid-area: btn2;
    height: 25px;
    width: auto;
    margin-top: 10px;
    background: #10B981;
    box-shadow: 0px 1px 2px rgba(0, 0, 0, 0.05); 
    border: none;
    border-radius: 6px;

    display: flex;
    flex-direction: row;
    justify-content: center;
    align-items: center;
    padding: 9px 17px 9px 15px;
    
    font-family: 'Inter';
    font-style: normal;
    font-weight: 500;
    font-size: 16px;
    line-height: 24px;
    
    color: #020024;
}

#button{
    font-family: 'Karla';
    font-style: normal;
    font-weight: bold;
    position: absolute;
    left: 150px;
    bottom: 20px;
    height: 35px;
    width: auto;
    margin-top: 10px;
    background: #7e9174;
    border: none;
    border-radius: 5px;

}