.contenedor-slider {
margin: auto;
width: 100%;
height: auto;
max-width: 1300px;
position: relative;
overflow: hidden;
box-shadow: 0 0 0 10px #fff,
0 15px 50px;
}

.slider {
display: flex;
width: 200%;
}

.slider__section {
width: 100%;
}

.slider__img {
display: block;
width: 100%;
height: 100%;
}

.btn-prev, .btn-next {
width: 40px;
height: 40px;
background: rgba(255, 255, 255, 0.7);
position: absolute;
top: 50%;
transform: translateY(-50%);
line-height: 40px;
font-size: 30px;
font-weight: bold;
text-align: center;
border-radius: 50%;
font-family: monospace;
cursor: pointer;
}

.btn-prev:hover, .btn-next:hover {
background: white;
}

.btn-prev {
left: 8px;
}

.btn-next {
right: 8px;
}