CSS code

body{
  margin:0;
  padding:0;
}

.topcontainer{
  background-color: #8C847B;
  height: 75px;
  margin-top: 0px;
  width: 100%;
}

.topleft{
  float:left;
  height: 75px;
  margin-top: 0px;
  width: 450px;
}

.topright{
  float:right;
  height: 75px;
  margin-top: 0px;
  width: 450px;
}

.midcontainer{
  width:100%;
  overflow: hidden;
  position: fixed;
  top: 0;
  right: 0;
  z-index: -100;
}

.topright > ul > li{
    display: inline;!important
    margin-top: 30px!important;
    color:  #EDECEB;
    font-family: 'Bellefair', serif;
    font-size: 20px;!important
    float: right;
    padding: 35px 25px 5px 5px;
}

.buttons{
    font-family: 'Bellefair', serif;
    background-color: #8C847B!important;
    color: #EDECEB!important;
    font-size: 12px;
    border:none;
    display: inline-block;
    vertical-align:middle;
    text-align: center;
    height: 30px;
    text-decoration: none;
    transition: all 0.5s;
    cursor: pointer;
    border-radius: 4px;
}

.button span {
  cursor: pointer;
  display: inline-block;
  position: relative;
  transition: 0.5s;
}

.button span:after {
  content: ' >>';
  position: absolute;
  opacity: 0;
  top: 0;
  right: -20px;
  transition: 0.5s;
}

.button:hover span {
  padding-right: 25px;
}

.button:hover span:after {
  opacity: 1;
  right: 0;
}

#firstbutton{
    margin-left: 25px;
}

.topleft > img{
    width: 80px;
    height: 80px;
    margin:0 0 0 10px;
    float: left;
}

.midcontainer > video{
  z-index: -100;
  display:block;
  width:100%;
  margin:0;
  padding:0;
}

.transbox{
  background-color: rgba(223,189,139,0.3);
  position: absolute;
  top:0;
  right:10%;
  height:100vh;
  width: 300px;
}

.form{
  padding:20px;
  margin-top:125px!important;
}

input{
  width:80%!important;
  margin-left:10px;
}

@media screen and (max-width: 1100px) {
  .mid_container > video{
    width:1100px;
  }
}