body, html {
    background-color: #d48104;
    padding: 0;
    margin: 0;
}

* {    
    box-sizing: border-box;
}

#slider {
    margin: 0 auto;
    width: 100%;  /*800px*/
    max-width: 100%;
    text-align: center;
 }
 #slider input[type=radio] {
    display: none;
 }
 #slider label {
    cursor:pointer;
    text-decoration: none;
 }
 #slides {   
    background: #fff;
    position: relative;    
 }
 #overflow {
    width: 100%;
    overflow: hidden;
 }
 #slide1:checked ~ #slides .inner {
    margin-left: 0;
 }
 #slide2:checked ~ #slides .inner {
    margin-left: -100%;
 }
 #slide3:checked ~ #slides .inner {
    margin-left: -200%;
 }
 #slide4:checked ~ #slides .inner {
    margin-left: -300%;
 }
 #slides .inner {
    transition: margin-left 800ms cubic-bezier(0.770, 0.000, 0.175, 1.000);
    width: 400%;
    line-height: 0;
    height: 300px;
 }
 #slides .slide {
    width: 25%;
    float:left;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100%;
    color: #fff;

 }
 #slides .slide_1 {
    background: #00171F;
 }
 #slides .slide_2 {
    background: #003459;
 }
 #slides .slide_3 {
    background: #007EA7;
 }
 #slides .slide_4 {
    background: #00A8E8;
 }

 
 #controls {
    margin: -160px 0 0 0;
    width: 100%;
    height: 50px;    
    /* position: relative; */
 }
 #controls label {
    transition: opacity 0.2s ease-out;
    display: none;
    width: 20px;
    height: 50px;
    opacity: .9;
 }
 #controls label:hover {
    opacity: 1;
 }
 #slide1:checked ~ #controls label:nth-child(2),
 #slide2:checked ~ #controls label:nth-child(3),
 #slide3:checked ~ #controls label:nth-child(4),
 #slide4:checked ~ #controls label:nth-child(1) {
    
    float:right;
    margin: 0 -50px 0 0;
    display: block;
 }
 #slide1:checked ~ #controls label:nth-last-child(2),
 #slide2:checked ~ #controls label:nth-last-child(3),
 #slide3:checked ~ #controls label:nth-last-child(4),
 #slide4:checked ~ #controls label:nth-last-child(1) {
   
    float:left;
    margin: 0 0 0 -50px;
    display: block;
 }



 #bullets {
    margin: 120px 0 0;
    text-align: center;
    
 }
 #bullets label {
    display: inline-block;
    width: 20px;
    height: 20px;
    border-radius:100%;
    background: #ccc;
    margin: 0 2px;
 }
 #slide1:checked ~ #bullets label:nth-child(1),
 #slide2:checked ~ #bullets label:nth-child(2),
 #slide3:checked ~ #bullets label:nth-child(3),
 #slide4:checked ~ #bullets label:nth-child(4) {
    background: #444;
 }



 @media screen and (max-width: 900px) {
    #slide1:checked ~ #controls label:nth-child(2),
    #slide2:checked ~ #controls label:nth-child(3),
    #slide3:checked ~ #controls label:nth-child(4),
    #slide4:checked ~ #controls label:nth-child(1),
    #slide1:checked ~ #controls label:nth-last-child(2),
    #slide2:checked ~ #controls label:nth-last-child(3),
    #slide3:checked ~ #controls label:nth-last-child(4),
    #slide4:checked ~ #controls label:nth-last-child(1) {
       margin: 0;
    }
    #slides {        
       /* max-width: calc(100% - 140px); */
       margin: 0 auto;
    }
 }