{
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
html{
  font-family: "sans-serif;
  font-size:10px;
  color: #333;
}
header{
  width: 100%;
  height: 100vh;
  position: relative;
}
a{
  text-decoration: none;
  color: inherit;
}
.menu-toggle{
  width: 5rem;
  heigh; 5rem;
  position: absolute;
  top: 1rem;
  left: 1rem;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  outline: none;
  display: npne;
  z-index: 999;
}
.menu-toggle i,
.fa-times{
  font-size: 3.5rem;
}
.fa-times{
  display: none;
  cursor: pointer;
}
nav{
  position: relative;
  display: flex;
  justify content: space-between;
  align items: center;
  border-bottom: 1px solid rgba(0,0,0, .075);
  z-index: 1000;
}
.logo{ 
  width: 5rem;
  box-sizing; content-box;
  padding-left: 3rem;
}
.logo img{
  display: block;
  width: 100%;
}
nav ul li{
  padding: 0 3rem;
  line-height: 8rem;
  transition: background-color .5s;
}
nav ul li:hover{
  background-color: rgba(0,0,0,.075);
}
.nav-right ul li{
  border-right: 1px solid rgba(0,0,0,.075);
}
.nav-right ul li:nth-child(1){
  border-left: 1px solid rgba(0,0,0,.075);
}
.nav-right ul li:last-child{
  border-right:none;
}
.nav-right i{
  margin-right: 1rem;
}
.nav-right i:first-child{
  margin-right:0;
}
.main{
posistion: absolute;
display: flex;
top: 0;
left: 0;
right: 0;
bottom: 0;
}
.tone-1{
  background-color: #f7f7f6;
  height: 100vh;
  flex: 1;
}
.tone-2{
  background-color: #f9e2ba;
  height: 100vh;
  flex: 1;
  position: relative;
}
.tone-2 img