* {
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}

body {
    background-color: rgb(237, 238, 249);
}
.content {
    background-color: rgb(188, 188, 245);
}
#result{
    height: 2.5rem;
}
.placeholder{
    width: 100%;
    height: 100%;
}