percentage_calculator.css

/* --- Head CSS Start --- */

* {
    box-sizing: border-box;
}

:root {
    --orange: #FA8B00;
    ---green: rgba(35,134,54);
    --lgreen: hsl(132, 59%, 39%);
    --dgray: rgb(1,4,9);
    --gray: rgb(13,17,23);
    --lgray: rgb(177,186,196);
    --white: rgb(201,209,217);
    --dwhite: rgb(85,91,101);
}

html {
    font-size: 16px;
    font-family: Impact, Haettenschweiler, 'Arial Narrow Bold', sans-serif;
}

/* --- Head CSS End --- */

/* --- Calculator CSS Start --- */

body {
    background-color: var(--dgray);
}

.container {
    background-color: var(--gray);
    border-radius: 10px;
    width: clamp(30%, 800px, 65%);
    margin-left: auto;
    margin-right: auto;
    margin-top: calc(50vh - 14.5%);
    padding: 40px;
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
    justify-content: center;
}

h2 {
    font-size: 16px;
    color: var(--white);
    line-height: 35px;
    display: inline-block;
}

button {
    background-color: var(---green);
    cursor: pointer;
    padding: 6px 10px;
    transition: 0.3s;
    border-radius: 3px;
    width: 105px;
    color: white;
    border: none;
    font-size: 1rem;
}

button:hover {
    background-color: var(--lgreen);
}

#resultOne, #resultTwo, #resultThree {
    background-color: white;
    margin-left: 15px;
    width: minmax(80%, 150px);
}

input {
    border-radius: 5px;
    width: 100px;
    padding: 5px 10px;
    border: none;
    color: black;
    font-size: 1rem;
}

.calcOne, .calcTwo, .calcThree {
    border: 2px solid rgba(177,186,196, 60%);
    padding: 5px 15px;
    border-radius: 8px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.hid {
    visibility: hidden;
}