/* @import url('https://fonts.googleapis.com/css2?family=Roboto:wght@100;300;400;500;700&display=swap'); */
@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@100&display=swap');

html {
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
    font-family: 'Roboto', sans-serif;
}

*, *::before, *::after {
    -webkit-box-sizing: inherit;
    -moz-box-sizing: inherit;
    box-sizing: inherit;
}

body {
    margin: 0;
    padding: 0;
}

pre { 
    margin: 0;
    padding: 0;
}

.container {
    width: 100%;
    max-width: 980px;
    margin: 0 auto;
}

header {
    text-align: center;
}

h1.title_bin2dec {
    letter-spacing: .4em;
    color: tomato;
}

.container_calculator {
    width: 100%;
    max-width: 400px;
    background-color: tomato;
    border-radius: 5px;
    margin: 5px auto;
    padding: 10px 20px
}

.container_calculator > label {
    display: inline-block;
    color: #fff;
}

.container_calculator > input {
    height: 20px;
    border: 1px solid tomato;
    border-radius: 5px;
    width: 100%;
    margin: 5px 0;
}

div.result_bin2dec {
    border: 1px solid #edf2f7;
    background-color: #edf2f7;
    border-radius: 10px;
    margin-top: 30px;
    height: 35px;
}