*,
*::after,
*::before {
    box-sizing: border-box;
}

html {
    font-family: arial;
}

body {
    margin: 0;
}

a {
    color: #45d296;
}

.site-wrap {
    max-width: 1000px;
    margin: 0 auto;
    padding: 1em 0.5em;
}

.block-slider {
    line-height: 100px;
    position: relative;
}

.block-navigator {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 1;
    font-weight: bold;
    font-size: 3em;
    padding: 0 20px;
    display: none;
    transition: 100ms all ease-in;
    opacity: .4;
    cursor: pointer;
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    -khtml-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

.block-navigator:hover,
.block-navigator:focus {
    opacity: .8;
}

.block-next {
    right: -60px;
}

.block-back {
    left: -60px;
}

.block-slider__items {
    margin: -0.5em;
}

.block-slider__items::after {
    display: table;
    clear: both;
    content: " ";
}

.block-slider__item {
    width: 50%;
    float: left;
    padding: 0 0.5em;
}

@media (min-width: 500px) {
    .block-slider__item {
        width: 33.33333%;
    }
}

@media (min-width: 700px) {
    .block-slider__item {
        width: 25%;
    }
}

@media (min-width: 800px) {
    .block-slider__item {
        width: 20%;
    }
}

@media (min-width: 900px) {
    .block-slider__item {
        width: 16.66667%;
    }
}

@media (min-width: 1000px) {
    .block-slider__item {
        width: 14.2857142857%;
    }
    .block-navigator {
        display: block;
    }
}

.block-slider__image {
    padding: 0 0.5em;
    background: #45d296;
    color: white;
    text-align: center;
}