input[type="file"] {
            margin: 10px 0
        }

        #preview {
            display: none;
            width: 100%;
            max-height: 200px;
            object-fit: contain;
            margin-top: 10px;
            border-radius: 6px;
            border: 1px solid #ddd
        }

        input[type="range"] {
            width: 100%
        }

        #sizeInfo {
            font-size: 14px;
            color: #555;
            margin-top: 10px
        }
        
        .mb-to-kb-title {
    position: relative;
    padding: 18px 25px;
    color: #333;
    font-size: 18px;
    font-weight: 500;
    vertical-align: middle;
    line-height: 30px
}

.mbkb-container {
    padding: 0 25px 30px
}

.bg-default p, p.bg {
    font-size: 13px;
    color: #333;
    text-align: center
}

#quality {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 6px;
  background: #e0e0e0;
  border-radius: 3px;
  outline: none;
  margin: 15px 0;
  transition: background 0.2s
}

#quality:hover {
  background: #d5d5d5
}

#quality::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: #333;
  cursor: pointer;
  transition: transform 0.1s ease, background-color 0.2s
}

#quality::-webkit-slider-thumb:hover {
  background: #555;
  transform: scale(1.1)
}

#quality::-moz-range-thumb {
  width: 18px;
  height: 18px;
  border: none;
  border-radius: 50%;
  background: #333;
  cursor: pointer;
  transition: transform 0.1s ease, background-color 0.2s
}

#quality::-moz-range-thumb:hover {
  background: #555;
  transform: scale(1.1)
}