* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    box-shadow: none!important;
}

h1 {
    font-size: 22px!important;
}

h2 {
    font-size: 18px!important;
}

h3 {
    font-size: 16px!important;
}

body {
    font-size: 14px !important;
}

.header {
    display: flex;
    justify-content: space-between;
    width: 100%;
}

.nav-link {
    color: #000;
    text-decoration: none;
    padding: 10px;
}

.convert-input {
    border-right: none;
}

.convert-input:focus {
    border-color: #007bff;
    box-shadow: none;
}

.convert-button {
    border-left: none;
}

.convert-button {
    box-shadow: none !important;
}

.convert-button:hover {
    background-color: #007bff;
    border-color: #007bff;
    color: #fff;
}

.convert-button:focus {
    background-color: #007bff;
    border-color: #007bff;
    color: #fff;
    box-shadow: none;
}

@media screen and (max-width: 600px) {
    #bookmarkBtn {
        display: none;
    }
}