options.css

html {
    height: 100%;
}
body {
    display: flex;
    height: 100%;
    justify-content: center;
    align-items: stretch;
}
#container {
    width: 500px;
    padding: 10px 20px;
    background-color: #E0E0E0;
}
.section-header {
    font-size: 18px;
    font-weight: normal;
    border-bottom: 1px solid;
    margin-bottom: 5px;
    margin-top: 10px;
}
.input-item {
    height: 25px;
    line-height: 25px;
    padding-top: 5px;
}
.input-label {
    display: inline-block;
    height: 20px;
    line-height: 20px;
    font-size: 14px;
}
.input-element {
    display: inline-block;
    height: 20px;
    line-height: 20px;
}
.operation-bar {
    margin-top: 20px;
}
.operation-button {
    display: inline-block;
    padding: 6px 30px;
    border-radius: 5px;
    font-size: 14px;
    outline: none;
}
.button-confirm {
    background-color: #66BB6A;
    color: white;
}