Styling bootstrap carousel indicators

Question

I'm trying to get the default bootstrap carousel indicators to be very thin yellow lines stuck at the bottom as shown below.

I got them to be at the bottom of the page but I can't seem to change them into rectangles or change their color.

HTML

<ol class="carousel-indicators">
    <li data-target="#myCarousel" data-slide-to="0" class="active"></li>
    <li data-target="#myCarousel" data-slide-to="1"></li>
    <li data-target="#myCarousel" data-slide-to="2"></li>
    <li data-target="#myCarousel" data-slide-to="3"></li>
</ol>

CSS

.carousel-indicators {
    margin: 0px;
    height: 0px;
}

.carousel-indicators ol {
    width: 100%;
}

.carousel-indicators li {
    height: 3px !important;
    border-radius: 0px !important;
    width: 25%;
}

Answer 1

Great css! I played with it to come up with ball indicators in half-white and the active indicator in yellow.

ol.carousel-indicators {
     position: absolute;
     bottom: 5px;
     margin: 0;
     left: 0;
     right: 0;
     width: auto;
}

ol.carousel-indicators li, ol.carousel-indicators li.active {
     width: 1rem;
     height: 1rem;
     margin: 0;
     border-radius: 50%;
     border: 0;
     background: transparent;
}

ol.carousel-indicators li {
     background: rgba(255,255,255,0.39);
     margin-left: .5rem;
     margin-right: .5rem;
}

ol.carousel-indicators li.active {
     background: yellow;
}