html {
    margin: 0;
    padding: 0;
    height: 100%;
}
* {
    box-sizing: border-box;
}
body {
    margin: 0;
    padding: 0;
    height: 100%;
    position: relative;
    background-color: #e2e2e2;
    overflow: hidden;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
}

.panel {
    background: white;
    box-shadow: 0x 0x 0x rgba(0,0,0,0.2);
    border-radius: 5px;
    overflow: hidden;
    /* padding: 10px; */
}
.panel.pad {
    padding: 10px;
}

.navigation-bar {
    position: absolute;
    background: white;
    width: 100%;
    height: 60px;
    top: 0px;
    left: 0px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-shrink: 0;
    position: relative;
    padding: 0rem 2rem;
}
.nav-items {
    display: flex;
    align-items: center;
}
button {
    margin: 0;
    padding: 5px 10px;
    background-color: white;
    cursor: pointer;
    border: 0;
    border-radius: 5px;
    transition: background-color 0.2s;
}
button.hidden { 
    display: none;
}
button:hover {
    background-color: #f0f0f0;
}
button:active {
    background-color: #d0d0d0;
}

/** Editor settings **/
.cm-editor {
    width: 100%;
    height: 100%;
}
.ͼ2 .cm-gutters {
    background-color: white;;
}

.ͼ2.cm-focused {
    outline: none;
}