styles.css

body {
    display: flex;
    flex-direction: column;
    height: 100%;
    color: #555;
    margin: 0;
}

header {
    display: flex;
    justify-content: center;
    height: 60px;
    box-shadow: 0 1px 5px rgba(0, 0, 0, 0.2);
}

ul.menu {
    margin: 0;
    padding: 4px;
}

ul.menu li {
    display: inline;
    margin-right: 10px;
    padding: 10px;
    line-height: 55px;
}

a {
    text-decoration: none;
    color: #555;
    font-family: 'Playfair Display', sans-serif;
    text-transform: uppercase;
    transition: color 0.5s ease-in-out;
}

a:hover {
    color: #999;
}

ul li.active a::after {
    width: 6px;
    height: 6px;
    background: #acacac;
    top: 27px;
    margin-top: 0;
    margin-left: 15px;
    position: absolute;
    content: '';
}

footer {
    display: inline-flex;
    justify-content: center;
    align-items: flex-end;
    padding: 30px 0;
    background-color: #555;
}

.dev {
    color: #9d9d9d;
    text-align: center;
}

div.sliders .item {
    display: flex;
    justify-content: center;
}

.sliders img {
    object-fit: scale-down;
    width: 500px;
    height: 500px;
}

.contaner {
    width: 90%;
    margin: 0 auto;
}

section {
    position: relative;
    flex-grow: 1;
    padding: 15px;
}

div.sliders .slick-prev::before,
div.sliders .slick-next::before {
    color: rgb(138, 133, 133);
}

.ac-container input:checked + label,
.ac-container input:checked + label:hover {
    color: #cec49a;
}

.ac-container label:hover::after,
.ac-container input:checked + label:hover::after {
    content: '';
    position: absolute;
    width: 24px;
    height: 24px;
    right: 13px;
    top: 7px;
    background: transparent url(http://netcribe.com/example/arrow_down.png) no-repeat center center;
}

.ac-container input {
    display: none;
}

.ac-container article {
    background: rgba(255, 255, 255, 0.5);
    margin-top: -1px;
    overflow: hidden;
    height: 0;
    position: relative;
    z-index: 10;
    transition: height 0.3s ease-in-out, box-shadow 0.6s linear;
}

.ac-container input:checked ~ article {
    transition: height 0.3s ease-in-out, box-shadow 0.6s linear;
    box-shadow: 0 0 0 1px rgba(155, 155, 155, 0.3);
    height: auto;
}

.ac-container article p {
    font-style: italic;
    color: #555;
    line-height: 23px;
    font-size: 14px;
    padding: 0 20px;
    text-shadow: 1px 1px 1px #fff;
}

.self {
    display: flex;
}

.self img {
    object-fit: scale-down;
    width: 500px;
    height: 500px;
}