body {
    text-align: center;
    padding-top: 50px;
    font: 15px arial, sans-serif;
    color: #111;
    line-height: 1.4;
}

a {
    color: #1a73e8;
    text-decoration: none;
}

a:hover {
    color: #1a73e8;
    text-decoration: underline;
}

ul li {
    margin-bottom: 8px;
}

h2 {
    padding-top: 20px;
}

h3 {
    padding-top: 12px;
}

#app {
    margin: auto;
    width: 300px;
    box-sizing: border-box;
}

input, select {
    width: 100%;
    padding: 10px;
    margin-bottom: 10px;
    box-sizing: border-box;
}

button {
    width: 100%;
    margin-bottom: 10px;
    padding: 10px;
    background-color: #3c5988;
    color: white;
    border: none;
    cursor: pointer;
}

button:hover {
    background-color: #426094;
}

#header {
    line-height: 1.5;
}

#footer {
    line-height: 1.2;
}
.small {
    font-size: 13px;
    color: #494949;
}