style.css

body {
    font-family: sans-serif;
    background-color: rgb(0, 0, 0);
}

.background {
    background-color: rgba(0, 0, 0, 0.703);
    margin-top: 10ch;
    margin-left: 66ch;
    margin-right: 62ch;
    padding-left: 25px;
    padding-bottom: 22px;
    box-shadow: 2px 5px 6px 6px rgba(73, 255, 243, 0.648);
}

.btn {
    padding-top: 18px;
    padding-left: 18px;
    padding-right: 18px;
    padding-bottom: 18px;
    width: 70px;
    color:aqua;
    border-style: hidden;
    height: 55px;
    background-color: rgb(0, 0, 0);
    margin-left: 20px;
    border-radius: 20px;
    text-align: center;
    font-size: 20px;
    cursor: pointer;
    box-shadow: 0px 0px 1px 1px rgb(63, 68, 168);
}

.btn1 {
    width: 70px;
    height: 55px;
    background-color: rgb(0, 0, 0);
    margin-left: 20px;
    border-radius: 20px;
    text-align: center;
    border-style: hidden;
    color: aqua;
    font-size: 20px;
    cursor: pointer;
    padding: 22px;
    padding-top: 15px;
    box-shadow: 0px 0px 1px 1px rgb(63, 68, 168);
}

.div1 {
    padding-bottom: 10px;
    margin-top: 25px;
    padding-top: 20px;
    margin-right: 35ch;
    display: flex;
}

.div2,
.div3,
.div4 {
    padding-bottom: 10px;
    margin-top: 8px;
    padding-top: 8px;
    margin-right: 35ch;
    display: flex;
}