.pen {
    font-family: "Gamja Flower", sans-serif;
    font-weight: 400;
    font-style: normal;
}

#sticky-box {
    position: -webkit-sticky; /* For Safari */
    position: sticky;
    top: 30px;
    float: left;
    width: 200px;
    margin-left: -300px; /* Pull the box to the left */
    background-color: #f0f0f0;
    border: 1px solid #ccc;
    padding: 15px;
    z-index: 1000;
}

.container {
    overflow: visible; /* Allow the box to be pulled outside */
}
input[type=range] {
    -webkit-appearance: none;
    width: 600px;
    height: 8px;
    background: #ddd;
    border-radius: 4px;
    outline: none;
    margin-bottom: 1em;
    position: relative;
}

/* 트랙 */
input[type=range]::-webkit-slider-runnable-track {
    height: 8px;
    background: linear-gradient(to right, #bbb 0%, #bbb 33%, transparent 33%, transparent 66%, #bbb 66%, #bbb 100%);
}
input[type=range]::-moz-range-track {
    height: 8px;
    background: linear-gradient(to right, #bbb 0%, #bbb 33%, transparent 33%, transparent 66%, #bbb 66%, #bbb 100%);
 }

/* thumb */
input[type=range]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 24px;
    height: 24px;
    background: #444;
    border-radius: 50%;
    cursor: pointer;
    margin-top: -8px;
    position: relative;
    z-index: 2;
}
input[type=range]::-moz-range-thumb {
    width: 24px;
    height: 24px;
    background: #444;
    border-radius: 50%;
    cursor: pointer;
    position: relative;
    z-index: 2;
}

/* 구간 구분선 표시 (아래에 작게 표시) */
.ticks {
    width: 600px;
    display: flex;
    justify-content: space-between;
    margin-top: -10px;
}

main {
    width: 100%;
}