Change the look and feel of slider with buttons

To change the look and feel of slider with buttons;

Open Designer Interface,
Go to the ‘Stylesheet’ module.
Add a new stylesheet.
Choose the slider control stylesheet from ‘Style Template’ to change the look and feel of slider with buttons.
Save the stylesheet by clicking on the “Save” button.

.slider-with-buttons {
    padding: 0;
    margin: 0;
    background: #fff;
    border: 1px solid var(--primaryColor);
    border-radius: 4px;
}

.slider-with-buttons .btn:first-child:after {
    content: "-";
    font-family: Arial;
    font-size: 21px;
    text-align: center;
    margin-left: -4px;
    position: absolute;
    display: block;
    top: 47%;
    -webkit-transform: translateY(-50%);
    -moz-transform: translateY(-50%);
    -ms-transform: translateY(-50%);
    transform: translateY(-50%);
    opacity: 1;
    background-image: none;
}

.slider-with-buttons .btn:nth-child(3):after {
    content: "+";
    font-family: Arial;
    font-size: 21px;
    text-align: center;
    margin-left: -5px;
    position: absolute;
    display: block;
    top: 50%;
    -webkit-transform: translateY(-50%);
    -moz-transform: translateY(-50%);
    -ms-transform: translateY(-50%);
    transform: translateY(-50%);
    opacity: 1;
    background-image: none;
}

.slider-with-buttons .btn span {
  font-size: 0;
}

.slider-with-buttons .btn {
    border-radius: 0;
}

.slider-with-button-value {
    color: var(--colorPrimary);
}