mywebsite/client/assets/scss/Sidebar.scss

$transitionDuration: .4s;

.Sidebar{
  background: #fff;
  width: 300px;
  padding-right: 1em;
  padding-left: 1em;
  
  img{
      width: 100%;
      height: auto;
  }
  
  a.toggler{
    display: none;
  }
  
  @media (max-width: 768px) {
    position: absolute;
    top: 0;
    right: 0;
    min-height: 100%;
    
    transform: translateX(300px);
    -webkit-transform: translateX(300px);
    transition: transform $transitionDuration ease-out;
    -webkit-transition: transform $transitionDuration ease-out;
    
    &.open {
      transform: translateX(0px);
      -webkit-transform: translateX(0px);
      border-left: 1px solid #EAEAEA;
      
        &:before {
            content:    " ";
            display:    block;
            background: rgba(0,0,0,0.4);
            position:   absolute;
            height:     100%;
            width:      100vw;
            top:        0;
            right:      100%;
        }
        
        a.toggler{
            transform: rotate(450deg);
        }
    }
    
    a.toggler{
        display: block;
        width: 2em;
        height: 2em;
        position: absolute;
        left: -3em;
        top: .5em;
        cursor: pointer;
        color: white;
        transform: rotate(0deg);
        transition: transform $transitionDuration ease-out;
        -webkit-transition: transform $transitionDuration ease-out;
    }
  }
}