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

nav { padding: 0 50px; }
nav img { margin-top: 30px; }

body {
    background-color: #F3F5FC;
    color: #333;
}

button:hover { cursor: pointer; }

.buttons {
    height: 900px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.button {
    width: 317px;
    height: 105px;
    left: 562px;
    top: 394px;
    margin: 10px;

    display: flex;
    justify-content: center;
    align-items: center;
}

button#start {
    /* Dark blue/dark-blue-300 */
    background-color: #0A3871;
    color: #F3F5FC;
    box-sizing: border-box;
    border-radius: 24px;
}

button#add {
    background-color: #F3F5FC;
    color: #0A3871;
    border: 1px solid #0A3871;
    box-sizing: border-box;
    border-radius: 24px;
}