@media screen and (max-width: 600px) {
      #leftcol{
      display: none;
     }
     #rightcol{
      display: none;
     }
     
    }
.....
@media screen and (max-width: 1220px) 
        {
           #content{ width:560px; position: relative; margin-left:220px; background:url(/images/content_back.jpg) #d4cd89; z-index:2; color:#1f1408;}
          
        }
        @media screen and (max-width: 600px) 
        {
           #content{ width:360px; position: relative; background:url(/images/content_back.jpg) #d4cd89; z-index:2; color:#1f1408;}
        }

html, body {
    width: 100%; height: 100vh;
    padding: 0;
    margin: 0;
    overflow: hidden;
    font-family: Verdana, Geneva, sans-serif;
   
}

html {
	background: rgb(100%, 0%, 40%);
	transition: 1s cubic-bezier(.25,.1,.2,3);
}


html:hover {
	background: rgb(100%, 0%, 40%);
}
html:hover {
    background: gray;
    
}

/**
 * Elastic color
 */


section, header, footer, nav, div, span, ul, li, a {
    box-sizing: border-box;
}

header {
    position: fixed;
    top: 0;
    right: 0;
    left: 0;
    background-color: #000000;
    max-width: 1920px;
    min-width: 469px;

}
header nav ul {
  display:flex ;
 align-items: center;
}


li a{
  width: 80px;
    height: 20px;
    display: block;
   
 
}
  a {
    margin: 13px;
  }
.menu {
   display: block;
}

li a {
	width: 80px;
    height: 20px;
}

section {
    float: left;
    display: block;
    width: 100%;
    height: 100vh;
    padding: 75px 0 0 0;

}
input:not(:focus) + .section1:not(:hover) {
	transform: scale(0);
	transition: .25s transform;
}

.section1 {
	transition: .5s cubic-bezier(.25,.1,.3,1.5) transform;
	transform-origin: 1.4em -.4em;
	width: 100%; height: 100vh;
	
 
#section-section1 {
    text-align: center;
    font-size: 20px;
    box-shadow: 0 0 10px rgba(0,0,0,0.5);
    max-width: 100%;

}



.smoke {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    max-width: 100%;
    
}
.smoke ul {
    margin: 0;
    padding: 0;
    display: flex;
  
   
}

.smoke ul li {
    list-style: none;
    color: #000000;
    font-size: 6em;
    font-weight: bold;
    letter-spacing: 0px; 
    
}

.smoke ul:hover li {
    animation: animate 1.5s  linear ;
    
    
}

@keyframes animate {
    0% {
        transform: rotate(0deg) translateY(0px);
        opacity: 0;
        filter: blur(1px);
        transition: opacity 1300ms
    }
    100% {
        transform: rotate(45deg) translateY(-150px);
        opacity: 1;
        filter: blur(20px);

    }
}


.smoke ul li:nth-child(1) {
    animation-delay: 0s;
}
.smoke ul li:nth-child(2) {
    animation-delay: 0.1s;
}
.smoke ul li:nth-child(3) {
    animation-delay: 0.2s;
}
.smoke ul li:nth-child(4) {
    animation-delay: 0.3s;
}
.smoke ul li:nth-child(5) {
    animation-delay: 0.4s;
}
.smoke ul li:nth-child(6) {
    animation-delay: 0.5s;
}
.smoke ul li:nth-child(7) {
    animation-delay: 0.6s;
}
.smoke ul li:nth-child(8) {
    animation-delay: 0.7s;
}
.smoke ul li:nth-child(9) {
  animation-delay:0.8s;
}
.smoke ul li:nth-child(10) {
  animation-delay: 0.9s;
}
.smoke ul li:nth-child(11) {
  animation-delay: 1s;
}
 

#section-section2 {
	width: 100%; height: 100vh;
    transition: .5s cubic-bezier(.25,.1,.3,1.5) transform;
    transform-origin: 1.4em -.4em;
    margin: 0;
	width: 100%;
	height: 100vh;
	font-family: "Exo", sans-serif;
	color: #fff;
	background: linear-gradient(-45deg, #ee7752, #e73c7e, #23a6d5, #23d5ab);
	background-size: 400% 400%;
    animation: gradientBG 15s ease infinite;
	
}

@keyframes gradientBG {
	0% {
		background-position: 0% 50%;
	}
	50% {
		background-position: 100% 50%;
	}
	100% {
		background-position: 0% 50%;
	}
}

.title {
    text-align: top;
    color: #FFF;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    

}

h2 {
    background-image: url(https://media.giphy.com/media/26BROrSHlmyzzHf3i/giphy.gif);
    background-size: cover;
    color: transparent;
    -moz-background-clip: text;
    -webkit-background-clip: text;
    text-transform: uppercase;
    font-size: 65px;
    line-height: .75;
    margin: 10px 0;
 
    
}
/* styling my button */

.white-mode {
    text-decoration: none;
    padding: 7px 10px;
    background-color: #122;
    border-radius: 3px;
    color: #FFF;
    transition: .35s ease-in-out;
    position: absolute;
    left: 15px;
    bottom: 15px;
}

.white-mode:hover {
    background-color: #FFF;
    color: #122;
}

#section-section3 {
    background: #27ae60;
	width: 100%; height: 100vh;
    
}

.a-text {
    font-family:Georgia;
    font-size:2em;
    margin:2em;
  }
  
  strong {
    animation:shadowOff 5s ease-in-out infinite alternate;
    font-weight:normal;
    text-shadow:.02em 0 currentColor, -.02em 0 currentColor;
  }
  
  @keyframes shadowOff {
    to {
      text-shadow:0 0 currentColor;
    }
  }



#section-section4 {
    background: #6ee2ff;
	width: 100%; height: 100vh;
    
}


.heading {
    text-align: center;
    font-size: 15px;
    color: #000000;
    margin-left: 300px;
}



.btn {
    display: inline-block;
    padding:  15px 15px;
    border-radius: 10px;
    box-shadow: 2px 2px 2px rgba(0, 0, 0, 0.5);
    background-color: #000000;
    color: rgb(255, 255, 255);
    font-weight: 600;
    text-transform: uppercase;
    cursor: pointer;
    margin: auto;
    text-decoration: none;
    width: 300px;
    height: 45px;
    font-size: 14px;
   text-align: center;
   
}


.ripple {
    position: relative;
    overflow: hidden;
}


.ripple-effect {
    display: inline-block;
    position: absolute;
    top: 0;
    left: 0;
    height: 0;
    width: 0;
    border: 2px solid #62d62c;;
    border-radius: 5000px;
    animation: ripple 1s ease forwards;
    z-index: 1;
}


@keyframes ripple {
    0% {
        transform: scale(0);
    }
    100% {
        transform: scale(100);
    }
}

/**
 * Animation along a circular path - Solution 2
 */
 
 @keyframes spin {
	from {
		transform: rotate(0turn)
		           translateY(-150px) translateY(50%)
		           rotate(1turn)
	}
	to {
		transform: rotate(1turn)
		           translateY(-150px) translateY(50%)
		           rotate(0turn);
	}
}


.avatar {
	animation: spin 2s infinite linear;
}

/* Anything below this is just styling */

.avatar {
	display: block;
	width: 50px; height: 50px;
	margin: calc(50% - 25px) auto 0;
	border-radius: 100%;
	overflow: hidden;
}

.path {
	width: 300px; height: 300px;
	padding: 20px;
	margin: 100px auto;
	border-radius: 50%;
    background: rgb(255, 51, 95);
    transition: transform 1s ease-out;  
}
    .path:hover{
        transform: scale(1.5);
}

/**
 * Smooth state animations
 * Photo credits: https://www.flickr.com/photos/employtheskinnyboy/3904743709
 */

 @keyframes panoramic {
	to { background-position: 100% 0; }
}

.panoramic {
    width: 200px; height: 200px;
    margin: 100% auto ;
    margin-top: -125px;
	background: url('https://pp.userapi.com/c849232/v849232434/129937/eKh0wxvjun8.jpg');
    background-size: auto 100%;	
	animation: panoramic 5s linear infinite alternate;
    animation-play-state: paused;
    border-radius: 100%;
    
}
.panoramic:hover, .panoramic:focus {
    animation-play-state: running;
    
}

#section-section5 {
    margin: 0;
	width: 100%;
	height: 100vh;
	font-family: "Exo", sans-serif;
	color: #fff;
	background: linear-gradient(-45deg, #ee7752, #e73c7e, #23a6d5, #23d5ab);
	background-size: 400% 400%;
    animation: gradientBG 15s ease infinite;
    
}

@keyframes gradientBG {
	0% {
		background-position: 0% 50%;
	}
	50% {
		background-position: 100% 50%;
	}
	100% {
		background-position: 0% 50%;
	}
}

.container {
    float: left;
    width: 100%;
    box-sizing: border-box;
    margin-bottom: 2rem;
  }
  
  .mover {
    margin-left: 1rem;
    padding: 0.2rem 0.5rem 0;
    float: left;
    height: 3.5rem;
    width: 10rem;
    background: #090909;
    border-radius: 0.5rem;
    border: 0.2rem solid orange;
    text-align: center;
  }
  .mover div {
    font-size: 1.5rem;
    color: #ffd280;
    font-family: "Work Sans", sans-serif;
    -webkit-transform: translateY(50%);
            transform: translateY(50%);
  }
  
  button {
    float: left;
    font-size: 1.5rem;
    font-family: "Work Sans", sans-serif;
    height: 4rem;
    width: 8rem;
    background-color: orange;
    border: 0;
  }
  
  .transitionRight {
    opacity: 0.2;
    -webkit-transform: translateX(100%);
            transform: translateX(100%);
    transition: opacity 0.5s ease, -webkit-transform 0.5s ease;
    transition: transform 0.5s ease, opacity 0.5s ease;
    transition: transform 0.5s ease, opacity 0.5s ease, -webkit-transform 0.5s ease;
  }
  
  .transitionLeft {
    opacity: 1;
    -webkit-transform: translateX(0);
            transform: translateX(0);
    transition: opacity 0.5s ease, -webkit-transform 0.5s ease;
    transition: transform 0.5s ease, opacity 0.5s ease;
    transition: transform 0.5s ease, opacity 0.5s ease, -webkit-transform 0.5s ease;
  }
  
  .animateIt {
    -webkit-animation: moveAndOpacity 1.5s ease 2;
            animation: moveAndOpacity 1.5s ease 2;
    -webkit-transform: translate3d(0, 0, 0);
            transform: translate3d(0, 0, 0);
  }
  
  @-webkit-keyframes moveAndOpacity {
    0% {
      -webkit-transform: translateX(0);
              transform: translateX(0);
      opacity: 1;
    }
    50% {
      -webkit-transform: translateX(10rem);
              transform: translateX(10rem);
      opacity: 0.1;
    }
    100% {
      -webkit-transform: translateX(0);
              transform: translateX(0);
      opacity: 1;
    }
  }
  
  @keyframes moveAndOpacity {
    0% {
      -webkit-transform: translateX(0);
              transform: translateX(0);
      opacity: 1;
    }
    50% {
      -webkit-transform: translateX(10rem);
              transform: translateX(10rem);
      opacity: 0.1;
    }
    100% {
      -webkit-transform: translateX(0);
              transform: translateX(0);
      opacity: 1;
    }
  }
  
  div.scene {
    width: 300px;
    height: 200px;
    border: 1px solid #CCC;
    margin: 80px;
    perspective: 400px;
  }
  
  .box {
    width: 300px;
    height: 300px;
    position: relative;
    transform-style: preserve-3d;
    transform: translateZ(-50px);
    transition: transform 1s;
    
    
  }
  
  .box.show-front  { transform: translateZ( -50px) rotateY(   0deg); }
  .box.show-back   { transform: translateZ( -50px) rotateY(-180deg); }
  .box.show-right  { transform: translateZ(-150px) rotateY( -90deg); }
  .box.show-left   { transform: translateZ(-150px) rotateY(  90deg); }
  .box.show-top    { transform: translateZ(-100px) rotateX( -90deg); }
  .box.show-bottom { transform: translateZ(-100px) rotateX(  90deg); }
  
  
  .box__face {
    position: absolute;
    border: 2px solid black;
    font-size: 40px;
    font-weight: bold;
    color: white;
    text-align: center;
  }
  
  .box__face--front,
  .box__face--back {
    width: 300px;
    height: 200px;
    line-height: 200px;
  }
  
  .box__face--right,
  .box__face--left {
    width: 100px;
    height: 200px;
    left: 100px;
    line-height: 200px;
  }
  
  .box__face--top,
  .box__face--bottom {
    width: 300px;
    height: 100px;
    top: 50px;
    line-height: 100px;
  }
  
  .box__face--front  { background: hsla(  0, 100%, 50%, 0.7); }
  .box__face--right  { background: hsla( 60, 100%, 50%, 0.7); }
  .box__face--back   { background: hsla(120, 100%, 50%, 0.7); }
  .box__face--left   { background: hsla(180, 100%, 50%, 0.7); }
  .box__face--top    { background: hsla(240, 100%, 50%, 0.7); }
  .box__face--bottom { background: hsla(300, 100%, 50%, 0.7); }
  
  .box__face--front  { transform: rotateY(  0deg) translateZ( 50px); }
  .box__face--back   { transform: rotateY(180deg) translateZ( 50px); }
  
  .box__face--right  { transform: rotateY( 90deg) translateZ(150px); }
  .box__face--left   { transform: rotateY(-90deg) translateZ(150px); }
  
  .box__face--top    { transform: rotateX( 90deg) translateZ(100px); }
  .box__face--bottom { transform: rotateX(-90deg) translateZ(100px); }
  
  label {

       margin-right: 10px; }