main.css

* {
    box-sizing: border-box;
}
h1, h2, h3, h4, h5, h6, p, pre {
    margin: 0;
    font-family: "Open Sans", sans-serif;
}
p {
    font-size: 15px;
    margin: 0 0 5px 0;
}
.tae-header {
    width: 100%;
    background-color: #6f9dee;
    font-size: 25px;
    font-family: "Roboto", arial;
    padding: 10px 0 10px 10px;
    color: white;
}
.tae-body {
    width: 70%;
    float: left;
    background-color: #FFE4C4;
    padding: 5px;
}
.tae-output-title, .tae-output-subtitle {
    font-family: "Roboto", sans-serif;
    font-size: 1.3em;
    text-align: center;
    margin: 10px 0;
}
.tae-output-title {
    font-size: 2.5em;
}
.tae-output-subtitle {
    color: #777;
}
.tae-output pre {
    color: #A09469;
    font-size: 15px;
    margin: 5px 0;
}
.tae-output pre::before {
    content: "> ";
}
.tae-input {
    width: 100%;
    border: 2px inset #EEEEEE;
}
.tae-menu {
    width: 29.4%;
    float: right;
    display: inline-block;
    margin-left: 5px;
    margin-top: 2px;
}
.tae-menu > div {
    background: #FFFFFF;
    border: 2px solid #ffd6b9;
    border-radius: 10px;
    padding: 5px 0 5px 8px;
    margin-bottom: 2px;
}
.tae-menu .arrow {
    float: right;
    display: inline-block;
    width: 0;
    position: relative;
    bottom: 15px;
    right: 10px;
    border-top: 6px solid transparent;
    border-right: 8px solid #000;
    border-bottom: 6px solid transparent;
    transition: 0.2s ease transform;
}
.tae-menu .active .arrow {
    transform: rotate(-90deg);
}
.tae-menu h3 {
    font-size: 15px;
}
.tae-menu-wrapper {
    display: none;
}