.kb-container{
  min-height: 800px;
}
.kb-theme{
  position: absolute;
  width: 100%; height: calc(100vw * 0.62); /*760px;*/
  background-image: url(../images/front.jpg);
  background-position: left 0px;
  background-repeat: no-repeat;
  background-size: 100% auto;
  overflow: hidden;
}


/* header */
.kb-header{
  min-height: 250px;
}
.kb-title{
  margin: 50px 70px 0 10px;
  padding: 15px 25px 35px;
}
.kb-title img{
  width: 100%;
  pointer-events: none;
}

@media only screen and (max-width: 1024px){
  /*.kb-theme{
    height: 680px;
  }*/
}
@media only screen and (max-width: 991px){
  .kb-theme{
    height: calc(100vw / 2);
  }
  .kb-title{
    margin: 70px 30px 0 10px;
    padding: 15px 15px;
  }
  .kb-title img{
    width: 100%;
  }
}
@media only screen and (max-width: 767px){
  .kb-theme{
    height: calc(100vw / 2);
  }
  .kb-title{
    margin: 50px 0 0;
    padding: 15px 15px;
  }
  .kb-title img{
    width: 100%;
  }
}


/* main */
.kb-main{
  min-height: 385px;
}
.kb-front{
  background-color: rgba(255,255,255,0.5);
  margin: -20px 60px 0 0px;
  padding: 15px 25px 25px;
  text-align: center;
}
.kb-front p{
  font-size: 1.1rem;
  color: #800;
  padding: 0 25px;
  text-align: justify;
  /*font-weight: bold;*/
}

/* list menu */
.kb-menu{
  margin: 10px 16px;
  width: 7em;
  text-align: center;
  padding: 0.25rem 0 !important;
  background-color: rgba(255,255,255,0.6);
  border-radius: 0;
  border: 1px #800 solid;
}
.kb-menu:hover{
  background-color: #fff;
}
.kb-menu-w{
  width: 16em;
}
.kb-menu-w:hover{
  background-color: #fff;
}

@media only screen and (max-width: 1024px){
  .kb-main{
    min-height: 335px;
  }
}
@media only screen and (max-width: 991px){
  .kb-header{
    height: calc(100vw / 2);
  }
  .kb-front{
    width: 90%;
    margin: 0 auto;
    padding: 25px 25px;
  }
  .kb-menu{
    width: 11em;
  }
  .kb-menu-w{
    width: 24em;
  }
}
@media only screen and (max-width: 767px){
  .kb-header{
    height: calc(100vw / 2);
  }
  .kb-front{
  }
  .kb-menu{
    width: 9em;
  }
  .kb-menu-w{
    width: 20em;
  }
}
@media only screen and (max-width: 575px) { /* xs */
  .kb-menu{
    width: 80%;
  }
  .kb-menu-w{
    width: 80%;
  }
}


/* responsive */
@media only screen and (max-width: 1199px){ /* xl */

}
@media only screen and (max-width: 991px){ /* lg */

}
@media only screen and (max-width: 767px){ /* md */

}
@media only screen and (max-width: 599px) {

}
@media only screen and (max-width: 575px) { /* xs */

}
@media only screen and (max-width: 440px) {
}