.grid-container > div {
  text-align: center;
  padding: 20px 0;
  font-size: 30px;
}
input[type='range'] {
    -webkit-appearance: none;
    background: rgb(220, 220, 220);;
    border-radius: 5px;
    width: 200px;
    height: 7px;
    background-size: 70% 100%;
    background-repeat: no-repeat;
  }
  input[ type='range']::-webkit-slider-thumb{
    -webkit-appearance: none;
    height: 20px;
    width: 20px;
    border-radius: 50px;
    background: black;
    cursor: ew-resize;
    box-shadow: 0 0 2px 0 #555;
    transition: background .3s ease-in-out;
  }
  input[type='range']::-webkit-slider-runnable-track{
    -webkit-appearance: none;
    box-shadow: none;
    border: none;
    background: transparent;
  }
textarea {
    width: 100%;
    padding: 12px 20px;
    margin: 8px 0;
    display: inline-block;
    border: 1px solid #ccc;
    border-radius: 4px;
    box-sizing: border-box;
}