having trouble with my margins css

body {
  overflow-x: hidden;
  position: relative;
  margin: 0;
  padding: 0;
  font-family: 'Montserrat',sans-serif;
  font-weight: 400;
  font-size: 13px;
  line-height: 20px;
  color: #555;
  background-color: #fff;
}

a,input,select,textarea {
  vertical-align: top;
  outline: none !important;
  -webkit-appearance: none;
  -webkit-border-radius: 0;
}

::-webkit-input-placeholder {
  opacity: 1 !important;
}

:-moz-placeholder {
  opacity: 1 !important;
}

::-moz-placeholder {
  opacity: 1 !important;
}

:-ms-input-placeholder {
  opacity: 1 !important;
}

select:-moz-focusring {
  color: transparent;
  outline: none !important;
  text-shadow: 0 0 0 #000 !important;
  border: 0 !important;
}

textarea {
  resize: none;
}

img {
  outline: 0;
  vertical-align: top;
  border: 0;
  width: 100%;
  max-width: 100.1%;
  height: auto;
}

a {
  color: #272727;
  transition: all 0.3s ease-in-out;
  -webkit-transition: all 0.3s ease-in-out;
}

a:hover,a:focus {
  text-decoration: none;
  color: #fdf58b;
}

.clear {
  clear: both;
  height: 0;
  font-size: 0;
}

#page {
  overflow-x: hidden;
}

section {
  padding: 55px 0;
}

.container {
  padding-left: 30px;
  padding-right: 30px;
}

.margbot0 {
  margin-bottom: 0 !important;
}

.margbot5 {
  margin-bottom: 5px !important;
}

.margbot10 {
  margin-bottom: 10px !important;
}

.margbot20 {
  margin-bottom: 20px !important;
}

.margbot25 {
  margin-bottom: 25px !important;
}

.margbot30 {
  margin-bottom: 30px !important;
}

.margbot40 {
  margin-bottom: 40px !important;
}

.margbot50 {
  margin-bottom: 50px !important;
}

.margbot55 {
  margin-bottom: 55px !important;
}

.margbot60 {
  margin-bottom: 60px !important;
}

.margbot65 {
  margin-bottom: 65px !important;
}

.margbot70 {
  margin-bottom: 70px !important;
}

.margbot75 {
  margin-bottom: 75px !important;
}

.margbot80 {
  margin-bottom: 80px !important;
}

.margbot95 {
  margin-bottom: 95px !important;
}

.margbot120 {
  margin-bottom: 120px !important;
}

.pad0 {
  padding: 0 !important;
}

.padbot0 {
  padding-bottom: 0 !important;
}

.padbot10 {
  padding-bottom: 10px !important;
}

.padbot20 {
  padding-bottom: 20px !important;
}

.padbot30 {
  padding-bottom: 30px !important;
}

.padbot40 {
  padding-bottom: 40px !important;
}

.padbot50 {
  padding-bottom: 50px !important;
}

.padbot60 {
  padding-bottom: 60px !important;
}

.padbot70 {
  padding-bottom: 70px !important;
}

.padbot80 {
  padding-bottom: 80px !important;
}

.padbot85 {
  padding-bottom: 85px !important;
}

.padtop0 {
  padding-top: 0 !important;
}

.center {
  text-align: center;
}

.right {
  text-align: right;
}

.color_text {
  color: #fdf58b !important;
}

.btn {
  display: inline-block;
  margin: 0 3px 5px 0;
  padding: 12px 20px;
  border: 0;
  border-radius: 0;
  box-shadow: none;
  text-transform: none;
  font-weight: 400;
  line-height: 20px;
  font-size: 13px;
  color: #fff;
  text-shadow: none;
  border-radius: 22px;
  background: #272727;
  transition: all 0.3s ease-in-out;
  -webkit-transition: all 0.3s ease-in-out;
}

.btn:focus,.btn:hover {
  color: #fff;
  background-color: #fdf58b;
}

.btn-active {
  color: #272727;
  background-color: #fdf58b;
}

.btn-active:hover {
  background: #272727;
  color: #fff;
}

.btn-white {
  background-color: #fff;
  color: #fdf58b;
}

.btn-white:hover {
  background-color: #fdf58b;
  color: blue;
}

.btn-lg {
  padding: 12px 50px;
  font-size: 16px;
}

.btn-sm {
  padding: 6px 20px 5px;
  font-size: 12px;
}

.btn-xs {
  padding: 2px 15px 3px;
  font-size: 11px;
}

ul,ol {
  padding: 0;
  margin: 0;
}

li {
  padding: 0;
  margin: 0;
  list-style: none;
}

p {
  margin: 0 0 20px;
}

h1,h2,h3,h4,h5,h6 {
  margin-top: 0;
  font-family: 'Montserrat',sans-serif;
  text-transform: none;
  font-weight: 400;
  line-height: 1.2;
  color: #272727;
}

h1 {
  margin: 0 0 24px;
  font-size: 50px;
}

h2 {
  margin: 0 0 30px;
  font-size: 41px;
}

h3 {
  margin: 0 0 21px;
  font-size: 36px;
}

h4 {
  margin: 0 0 21px;
  font-size: 28px;
}

h5 {
  margin: 0 0 15px;
  font-size: 22px;
}

h6 {
  margin: 0 0 15px;
  font-size: 17px;
}

header {
  position: absolute;
  z-index: 9999;
  left: 0;
  top: 100%;
  width: 100%;
  padding: 19px 0 22px;
  margin-top: -86px;
  transition: background 0.3s ease-in-out,padding 0.3s ease-in-out;
  -webkit-transition: background 0.3s ease-in-out,padding 0.3s ease-in-out;
}

header.menu_fixed {
  position: fixed;
  top: 0;
  margin: 0;
  padding: 10px 0;
  background-color: #272727;
}

header .btn {
  float: right;
}

header .btn:hover {
  color: #272727;
  background-color: #fff;
}

.main_menu {
  float: left;
  padding: 14px 0 11px;
}

.main_menu li {
  display: inline-block;
  margin: 0 55px 0 0;
}

.main_menu li a {
  display: block;
  padding: 0;
  text-transform: uppercase;
  font-weight: 400;
  color: #fff;
}

.main_menu li a:hover,.main_menu li.active a {
  color: #fdf58b;
}

#home {
  position: relative;
  height: 1080px;
  background-color: #272727;
}

.flexslider.top_slider .slides li {
  background-repeat: no-repeat;
  background-size: cover;
  background-position: center center;
}

.flexslider.top_slider .slides li.slide1 {
  background-image: url(../images/slider/slide1.jpg);
}

.flexslider.top_slider .slides li.slide2 {
  background-image: url(../images/slider/slide2.jpg);
}

.flex-direction-nav a {
  top: auto;
  bottom: 100px;
}

.flexslider.top_slider .flex-direction-nav a.flex-prev {
  left: 50%;
  margin-left: -35px;
  background-color: rgba(255,255,255,0.3);
}

.flexslider.top_slider .flex-direction-nav a.flex-next {
  right: 50%;
  margin-right: -35px;
  background-color: rgba(255,255,255,0.3);
}

.flexslider.top_slider .flex-direction-nav a:hover {
  background-color: #fdf58b;
}

.flexslider .flex-direction-nav a i {
  display: block;
  text-align: center;
  line-height: 29px;
  font-size: 20px;
  color: #fff;
  transition: all 0.3s ease-in-out;
  -webkit-transition: all 0.3s ease-in-out;
}

.flexslider .flex-direction-nav a:hover i {
  color: #272727;
}

.flexslider.top_slider .container {
  position: relative;
}

.top_slider_cap {
  position: absolute;
  left: 30px;
  right: 30px;
  top: 50%;
  text-align: center;
  transform: translateY(-50%);
  -o-transform: translateY(-50%);
  -ms-transform: translateY(-50%);
  -webkit-transform: translateY(-50%);
}

.top_slider_cap img {
  width: auto !important;
  margin-left: auto;
  margin-right: auto;
}

.top_slider_cap h1 {
  margin: 0 0 31px;
  text-transform: none;
  font-weight: 300;
  line-height: 35px;
  font-size: 42px;
  color: #fdf58b;
  text-shadow: 1px 1px 1px rgba(0,0,0,0.31);
}

.top_slider_cap p {
  margin: 0 0 39px;
  line-height: 25px;
  font-size: 20px;
  color: #fff;
}

.top_slider_cap .slide_btn {
  display: inline-block;
  margin: 0;
  padding: 18px 70px 17px;
  font-weight: 400;
  line-height: 20px;
  font-size: 16px;
  color: #272727;
  border-radius: 24px;
  background-color: #fdf58b;
}

.top_slider_cap .slide_btn:hover {
  color: #272727;
  background-color: #fff;
}

#gallery {
  padding: 0;
}

#gallery .gallery_wrap {
  margin-right: -250px;
}

#gallery .gallery_img {
  overflow: hidden;
}

.gallery_img.item1 {
  width: 32.14%;
}

.gallery_img.item2 {
  width: 33.92%;
}

.gallery_img.item3 {
  width: 33.92%;
}

.gallery_img.item4 {
  width: 42.91%;
}

.gallery_img.item5 {
  width: 23.15%;
}

.gallery_img.item6 {
  width: 57.08%;
}

.gallery_img.item7 {
  width: 21.54%;
}

.gallery_img.item8 {
  width: 21.36%;
}

#gallery .gallery_img img {
  transition: all 0.5s ease-in-out;
  -webkit-transition: all 0.5s ease-in-out;
}

#gallery .gallery_img:hover img {
  transform: scale(1.05);
  -webkit-transform: scale(1.05);
}

#gallery .gallery_img:before {
  content: '';
  position: absolute;
  z-index: 2;
  left: 0;
  top: 100%;
  width: 100%;
  height: 100%;
  background: -moz-linear-gradient(top,rgba(125,185,232,0) 0%,rgba(253,245,139,0.3) 30%,rgba(253,245,139,1) 100%);
  background: -webkit-gradient(linear,left top,left bottom,color-stop(0%,rgba(125,185,232,0)),color-stop(30%,rgba(253,245,139,0.3)),color-stop(100%,rgba(253,245,139,1)));
  background: -webkit-linear-gradient(top,rgba(125,185,232,0) 0%,rgba(253,245,139,0.3) 30%,rgba(253,245,139,1) 100%);
  background: -o-linear-gradient(top,rgba(125,185,232,0) 0%,rgba(253,245,139,0.3) 30%,rgba(253,245,139,1) 100%);
  background: -ms-linear-gradient(top,rgba(125,185,232,0) 0%,rgba(253,245,139,0.3) 30%,rgba(253,245,139,1) 100%);
  background: linear-gradient(to bottom,rgba(125,185,232,0) 0%,rgba(253,245,139,0.3) 30%,rgba(253,245,139,1) 100%);
  filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#007db9e8',endColorstr='#fdf58b',GradientType=0 );
  transition: all 0.5s ease-in-out;
  -webkit-transition: all 0.5s ease-in-out;
}

#gallery .gallery_img:hover:before {
  top: 0;
}

#gallery .gallery_img a {
  position: absolute;
  z-index: 3;
  left: 0;
  top: 80%;
  display: block;
  width: 100%;
  text-transform: uppercase;
  text-align: center;
  line-height: 28px;
  font-size: 26px;
  opacity: 0;
  transform: translateY(-50%);
  -webkit-transform: translateY(-50%);
}

#gallery .gallery_img:hover a {
  top: 50%;
  opacity: 1;
}

#about {
  overflow: hidden;
  position: relative;
  padding: 141px 0 102px;
}

#about .about_img {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 55.4%;
  background-image: url(../images/about_img.jpg);
  background-repeat: no-repeat;
  background-size: cover;
  background-position: center center;
}

#about .about_content {
  float: right;
  width: 45.5%;
  padding: 0 130px;
  text-align: center;
  line-height: 25px;
}

#services {
  padding-top: 112px;
}

.countdown {
  padding-bottom: 94px;
}

.countdown span {
  display: block;
  margin-bottom: 20px;
  text-align: center;
  line-height: 88px;
  font-size: 103px;
  color: #fe5252;
}

.countdown p {
  text-transform: uppercase;
  text-align: center;
}

.services_content {
  position: relative;
  float: left;
  width: 44%;
}

.services_text {
  position: absolute;
  left: 16%;
  right: 16%;
  top: 50%;
  text-align: center;
  transform: translateY(-50%);
  -webkit-transform: translateY(-50%);
}

.services_items_wrap {
  float: right;
  width: 56%;
}

.service_item {
  position: relative;
  display: inline-block;
  width: 32.8%;
  text-align: center;
  line-height: 25px;
  font-size: 14px;
  color: #c8c8c8;
  perspective: 1600px;
  -webkit-perspective: 1600px;
}

.service_item_front {
  padding: 112px 30px 92px;
}

.color1 .service_item_front {
  background-color: #272727;
}

.color2 .service_item_front {
  background-color: #343434;
}

.color3 .service_item_front {
  background-color: #3f3f3f;
}

.service_item span {
  position: relative;
  display: block;
  margin-bottom: 32px;
  padding-bottom: 25px;
  line-height: 54px;
  font-size: 54px;
}

.service_item.color1 span {
  color: #fdf58b;
}

.service_item.color2 span {
  color: #dda71c;
}

.service_item.color3 span {
  color: #fe5252;
}

.service_item span:before {
  content: '';
  position: absolute;
  left: 50%;
  bottom: 0;
  margin-left: -15px;
  width: 30px;
  height: 3px;
}

.service_item.color1 span:before {
  background-color: #4b4b4b;
}

.service_item.color2 span:before {
  background-color: #595959;
}

.service_item.color3 span:before {
  background-color: #656565;
}

.service_item h4 {
  margin-bottom: 44px;
  text-transform: uppercase;
  line-height: 29px;
  font-size: 26px;
  color: #fff;
}

.service_item .service_item_front {
  position: relative;
  z-index: 24;
  transition: all 0.6s ease-in-out;
  -webkit-transition: all 0.6s ease-in-out;
}

.service_item:hover .service_item_front {
  z-index: 35;
  transform: rotateY(180deg);
  -o-transform: rotateY(180deg);
  -ms-transform: rotateY(180deg);
  -webkit-transform: rotateY(180deg);
  transition-delay: .2s;
  -webkit-transition-delay: .2s;
}

.service_item .service_item_back {
  position: absolute;
  z-index: 13;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  transform: rotateY(-180deg);
  -o-transform: rotateY(-180deg);
  -ms-transform: rotateY(-180deg);
  -webkit-transform: rotateY(-180deg);
  transition: all 0.6s ease-in-out;
  -webkit-transition: all 0.6s ease-in-out;
}

.color1 .service_item_back {
  background-color: #272727;
}

.color2 .service_item_back {
  background-color: #343434;
}

.color3 .service_item_back {
  background-color: #3f3f3f;
}

.service_item:hover .service_item_back {
  z-index: 46;
  transform: rotateY(0deg);
  -o-transform: rotateY(0deg);
  -ms-transform: rotateY(0deg);
  -webkit-transform: rotateY(0deg);
  transition-delay: .2s;
  -webkit-transition-delay: .2s;
}

.service_item .service_item_back p {
  position: absolute;
  left: 35px;
  top: 50%;
  right: 35px;
  transform: translateY(-50%);
  -webkit-transform: translateY(-50%);
}

.event_item {
  overflow: hidden;
  position: relative;
  float: left;
  width: 25%;
}

.event_item:before {
  content: '';
  position: absolute;
  z-index: 2;
  left: 0;
  top: 100%;
  width: 100%;
  height: 100%;
  background: -moz-linear-gradient(top,rgba(125,185,232,0) 0%,rgba(253,245,139,0.3) 30%,rgba(253,245,139,1) 100%);
  background: -webkit-gradient(linear,left top,left bottom,color-stop(0%,rgba(125,185,232,0)),color-stop(30%,rgba(253,245,139,0.3)),color-stop(100%,rgba(253,245,139,1)));
  background: -webkit-linear-gradient(top,rgba(125,185,232,0) 0%,rgba(253,245,139,0.3) 30%,rgba(253,245,139,1) 100%);
  background: -o-linear-gradient(top,rgba(125,185,232,0) 0%,rgba(253,245,139,0.3) 30%,rgba(253,245,139,1) 100%);
  background: -ms-linear-gradient(top,rgba(125,185,232,0) 0%,rgba(253,245,139,0.3) 30%,rgba(253,245,139,1) 100%);
  background: linear-gradient(to bottom,rgba(125,185,232,0) 0%,rgba(253,245,139,0.3) 30%,rgba(253,245,139,1) 100%);
  filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#007db9e8',endColorstr='#fdf58b',GradientType=0 );
  transition: all 0.5s ease-in-out;
  -webkit-transition: all 0.5s ease-in-out;
}

.event_item:hover:before {
  top: 0;
}

.event_item img {
  transition: all 0.5s ease-in-out;
  -webkit-transition: all 0.5s ease-in-out;
}

.event_item:hover img {
  transform: scale(1.05);
  -webkit-transform: scale(1.05);
}

.event_descr {
  position: absolute;
  z-index: 3;
  left: 30px;
  right: 30px;
  bottom: -100%;
  transition: all 0.5s ease-in-out;
  -webkit-transition: all 0.5s ease-in-out;
}

.event_item:hover .event_descr {
  bottom: 0;
}

.event_descr h4 {
  margin-bottom: 3px;
  font-weight: 700;
  line-height: 20px;
  font-size: 18px;
}

.event_descr .event_date {
  display: block;
  padding-bottom: 21px;
  text-transform: uppercase;
  font-size: 11px;
  color: #777;
}

#contacts_inf {
  padding: 47px 0 65px;
}

#contacts_inf h4 {
  margin-bottom: 18px;
  line-height: 20px;
  font-size: 18px;
}

footer {
  padding: 38px 0 21px;
  color: #878787;
  background-color: #272727;
}

footer #copyright {
  color: #fff;
}

footer #copyright span {
  color: #fdf58b;
}