body {
    padding: 15px 10px;
    background: rgb(230, 220, 211);
    font-family: 'Gill Sans', 'Gill Sans MT', Calibri, 'Trebuchet MS', sans-serif;
}

button {
    outline: none;
    cursor: pointer;
    border: none;
    padding: 7px 13px;
    border-radius: 3px;
    box-shadow: 2px 2px 2px rgba(124, 124, 124, 0.51);
}

#add {
    font-size: 28px;
    padding: 7px 13px;
}

#srt,
#rst {
    padding: 8px 10px;
}

input {
    padding-left: 8px;
    width: 30px;
    outline: none;
    border-radius: 3px;
    border: none;
    width: 40px;
    height: 28px;
    background: rgb(238, 238, 238);
    box-shadow: 2px 2px 2px rgba(124, 124, 124, 0.52);
}

input:focus,
button:active {
    box-shadow: 0 0 0 2px rgb(153, 150, 150);
}