body {
  background: #f2f2f2;
  font-family: 'Roboto',tahoma, calibri, arial;
}

* {
  margin: 0;
  padding: 0;
}

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

.mobmenu { display: none; }
 @media only screen and (max-width: 768px) {

#ust {
  background: #333;
  position: fixed;
  height: 40px;
  top: 0;
  left: 0;
  right: 0;
}

#ust #menuac {
  position: absolute;
  top: 0;
  right: 0;
  cursor: pointer;
  padding: 19px 30px 20px 10px;
  border-left: 1px solid #666;
}

#ust #menuac span {
  cursor: pointer;
  height: 3px;
  width: 23px;
  background: #c9c9c9;
  position: absolute;
  display: block;
  content: '';
  transition: all 500ms ease-in-out;
}

#ust #menuac span:before {
  cursor: pointer;
  height: 3px;
  width: 23px;
  background: #c9c9c9;
  position: absolute;
  display: block;
  content: '';
  top: -7px;
  transition: all 500ms ease-in-out;
}

#ust #menuac span:after {
  cursor: pointer;
  height: 3px;
  width: 23px;
  background: #c9c9c9;
  position: absolute;
  display: block;
  content: '';
  bottom: -7px;
  transition: all 500ms ease-in-out;
}

#ust #menuac.acik span { background-color: transparent; }

#ust #menuac.acik span:before {
  top: 0px;
  transform: rotate(45deg);
  -moz-transform: rotate(45deg);
  -ms-transform: rotate(45deg);
  -o-transform: rotate(45deg);
  -webkit-transform: rotate(45deg);
  bottom: 0;
}

#ust #menuac.acik span:after {
  top: 0;
  transform: rotate(-45deg);
  -moz-transform: rotate(-45deg);
  -ms-transform: rotate(-45deg);
  -o-transform: rotate(-45deg);
  -webkit-transform: rotate(-45deg);
}

.mobmenu {
  position: fixed;
  left: -300px;
  -webkit-transition: all 0.5s ease;
  -moz-transition: all 0.5s ease;
  transition: all 0.5s ease;
  width: 300px;
  height: 100%;
  background: #E74C3C;
  z-index: 9;
  display: block;
}

.mobmenu.mobmenu-acik {
  left: 0;
  -webkit-box-shadow: 10px 0px 26px -16px rgba(0,0,0,0.75);
  -moz-box-shadow: 10px 0px 26px -16px rgba(0,0,0,0.75);
  box-shadow: 10px 0px 26px -16px rgba(0,0,0,0.75);
}

.mobmenu ul.menu {
  margin: 0;
  padding: 0;
  list-style: none;
}

.mobmenu ul.menu li a {
  padding: 10px;
  display: block;
  list-style: none;
  color: #fff;
  border-bottom: 1px solid #ddd;
}

#icerik {
  padding: 50px 10px 10px 10px;
  border: 1px solid #ddd;
  height: 1000px;
  background: #fff;
}
}