*{
    margin: 0;
    padding: 0;
    font-family: 'Poppins', Arial, Helvetica, sans-serif;
    box-sizing: border-box;
}

body{
    background: #002339;
    color: #fff;
}

.container{
    margin: 12%;
    width: 90%;
    max-width: 700px;
}

.container h1{
    font-weight: 500;
    font-size: 45px;
    text-shadow: 2px 2px 4px #111;
}

.container h1 span{
    color: #019f55;
    border-bottom: 4px solid #019f55;
}

.display{
    width: 100%;
    margin: 50px 0 30px 0;
    background: #fff;
    color: #333;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 26px 20px;
    border-radius: 5px;
    box-shadow: 0px 4px 10px rgba(0, 0, 0, 0.3);
}

.display img{
    width: 30px;
    cursor: pointer;
}

.display input{
    border: 0;
    outline: 0;
    font-size: 24px;
    color: #333;
    font-weight: 300;
}

button{
    background-color: #019f55;
    color: #fff;
    padding: 16px 26px;
    font-size: 22px;
    font-weight: 300;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 5px;
    border: 0;
    outline: 0;
    cursor: pointer;
    box-shadow: 0px 4px 10px rgba(0, 0, 0, 0.3);
}

button img{
    width: 28px;
    margin-right: 10px;
}

@media (max-width: 815px) {
    .display{
        width: auto;
        margin: 50px 20px 30px 0;
        padding: 26px 16px;
    }
}