ms-slides.css

 /* Slide Show Styles */ 
.ms-slides__inner {
    display: flex;
    flex-direction: row;
    position: absolute;
    transform: translate3d(0, 0, 0);
    transition: 1000ms;
}

.ms-slides {
    overflow: hidden;
    position: relative;
}

.ms-slides__next-button, .ms-slides__prev-button {
    display: block;
    width: calc(40px - 8px);
    height: calc(40px - 8px);
    border-radius: 50%;;
    background-color:rgba(255,255,255,0.5);
    position: absolute;
    top: 50%;
    transform: translate(0, -50%);
    display:flex;
    justify-content: center;
    align-items: center;
    border: 4px solid transparent;
}

.ms-slides__next-button:hover, 
.ms-slides__prev-button:hover {
    border: 4px solid #fff;
}

.ms-slides__next-button {
    right: calc(1em - 4px);
}

.ms-slides__prev-button {
    left: calc(1em - 4px);
}

.ms-slides__next-button::after {
    content: '';
    display: block;
    width: 10px;
    height: 10px;
    border-top: 4px solid #fff;
    border-right: 4px solid #fff;
    transform: translate(-2px, 0) rotate(45deg);
}

.ms-slides__prev-button::after {
    content: '';
    display: block;
    width: 10px;
    height: 10px;
    border-bottom: 4px solid #fff;
    border-left: 4px solid #fff;
    transform: translate(2px, 0) rotate(45deg);
}

.ms-slides__indicators {
    list-style: none;
    position: absolute;
    display: flex;
    margin: 0;
    padding: 0;
    left: 50%;
    bottom: 1em;
    transform: translate(-50%, 0);
}

.ms-slides__indicators > li {
    width: 16px;
    height: 16px;
    margin: 4px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.5);
}