.bg-dark{
    background-color: rgb(85, 85, 85) !important;
}
.heading{
    text-align: center;
    /* border-style: solid ; */
    color: black;
    font-weight: bold;
    font-size: larger;
    padding: 8px;
    width: 100%;
    margin: 0px !important;
    border-bottom: 5px solid rgba(87, 85, 85, 0.708);
    border-top: 5px solid rgba(87, 85, 85, 0.708);
}
.toolbox{
    
    display: flex;
    padding: 10px;

}
.btn-action-gate:focus {
    outline: none; 
   
}
.gate-name{
    color: black;
    text-align: center;
    font-weight: bold;
    font-size: small;
    height:10px;
}
.gate-row{
margin-left: 0px;
margin-right: 0px;
margin-top: 5px;

}
.instruction{
  color:#383e43;
  font-size: 10px;
  font-weight: 700;
}
.btn-action{
    width: 50%;
    text-align: inherit;
    background-color: #fff;
    border: 1px solid rgb(255, 255, 255);
    border: none;
}       
.btn-action:focus {
    outline: none; 
    /* outline: 5px auto -webkit-focus-ring-color; */
}
.logic-exp-btn{
    border: 2px solid rgb(59, 57, 57);
    width: 100%;
    margin-bottom: 10px;
}
.logic-exp{
    padding-left: 35px;
    padding-right: 35px;
}

.nav-btn{
    color: white;
    background-color: transparent;
    border: 1px solid transparent;
    margin-left: 40px;
}
#canvas-sim {
    position: relative;
  }
  
  #defaultCanvas0{
    position: absolute;
    top: 0;
    left: 0;
    z-index: 1;
  }
  
  #myImage1 {
    position: absolute;
    margin-top: 28%;
    left:67.5%;
    z-index: 2;
    width:30%;
    display: none;
  }
  #myImage2 {
    position: absolute;
    margin-top: 28%;
    left:67.5%;
    z-index: 2;
    width:30%;
    display: none;
  }

  .switch {
    position: relative;
    display: inline-block;
    width: 42px;
    height: 17px;
    left: 20%;
    top: 20%;
  }
  
  .switch input { 
    opacity: 0;
    width: 0;
    height: 0;
  }
  
  .slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #ccc;
    -webkit-transition: .4s;
    transition: .4s;
  }
  
  .slider:before {
    position: absolute;
    content: "";
    height: 13px;
    width: 13px;
    left: 2px;
    bottom: 2px;
    background-color: white;
    -webkit-transition: .4s;
    transition: .4s;
  }
  
  input:checked + .slider {
    background-color: #383e43;
  }
  
  input:focus + .slider {
    box-shadow: 0 0 1px #383e43;
  }
  
  input:checked + .slider:before {
    -webkit-transform: translateX(26px);
    -ms-transform: translateX(26px);
    transform: translateX(26px);
  }
  
  /* Rounded sliders */
  .slider.round {
    border-radius: 34px;
  }
  
  .slider.round:before {
    border-radius: 50%;
  }