style.css

* {
    margin: 0;
}

@font-face {
    src: url('fonts/MyriadPro-Regular.otf');
    font-family: 'MyriadPro';
}

@font-face {
    src: url('fonts/Blogger_Sans-Light.otf');
    font-family: 'BloggerSans';
}

body {
    width: 100%;
    height: 100%;
    background-color: antiquewhite;
}

.main_calc {
    display: flex;
    flex-direction: column;
    width: 300px;
    height: 533px;
    background-color: #000000;
    position: absolute;
    left: 50%;
    top: 50%;
    margin-left: -150px;
    margin-top: -265.5px;
    font-family: 'MyriadPro';
}

.header {
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    width: 299px;
    height: 165px;
    /* background-color: gold; */
}

.template_width_height {
    width: 285px;
    height: 73px;
    background-color: rgb(0, 0, 0);
    margin: 0 auto;
}

.fon_under_input {
    background-color: black;
}

.input_wrapper {
    background-color: black;
}

.input {
    /* margin-top: 28%; */
    /* width: 100%; */
    /* height: 10%; */
    padding-right: 12px;
    padding-left: 25px;
    box-sizing: border-box;
    border: none;
    outline: none;
    background-color: #000000;
    color: white;
    font-weight: lighter;
    font-size: 70px;
    text-align: end;
    caret-color: transparent;
    font-family: 'BloggerSans';
}

input::-webkit-outer-spin-button,
input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

.buttons_calc {
    display: flex;
    flex-direction: column;
    color: white;
    font-size: 30px;
}

.group {
    display: flex;
    justify-content: space-around;
    align-items: center;
    text-align: center;
    box-sizing: fit-content;
    margin-right: 10px;
}

.button {
    width: 62px;
    height: 62px;
    border-radius: 50%;
    background-color: #333333;
    line-height: 68px;
    cursor: pointer;
    display: flex;
    flex-direction: row;
    justify-content: center;
    align-items: center;
}

.button.n0 {
    height: 62px;
    width: 134px;
    border-radius: 32px;
}

.gray_color {
    background-color: #a6a6a6;
    color: black;
    font-size: 25px;
    font-weight: 500;

}

.orange_color {
    background: #fe9500;
}