.side_bar{
    position:fixed;
    overflow: hidden;
    overflow-y:overlay;
    z-index: 9999;
    top: 0;
}
.side_bar>h2.title{
    padding: 15px;
    font-weight: 600;
    border-bottom: 1px solid rgba(0, 0, 0, 0.2);
    color: #fff;
    background-color: rgba(0, 0, 0, 0.25);
}
.side_bar.right{
    right: 0;
    transition:transform .25s ease-out;
    -webkit-transition: -webkit-transform .25s ease-out;
    -ms-transition: -ms-transform .25s ease-out;
    -moz-transition: -moz-transform .25s ease-out;
    -o-transition: -o-transform .25s ease-out;
    
    transition: transform .25s ease-out;
    -webkit-transform: translateX(100%);
    -ms-transform: translateX(100%);
    -moz-transform: translateX(100%);
    -o-transform: translateX(100%);

}
.side_bar.right.open{
    transform: translateX(0);
    -webkit-transform: translateX(0);
    -ms-transform: translateX(0);
    -moz-transform: translateX(0);
    -o-transform: translateX(0);
}
.side_bar.left{
    left: 0;
    transition:transform .25s ease-out;
    transform: translateX(-100%);
    
    -webkit-transition: -webkit-transform .25s ease-out;
    -webkit-transform: translateX(-100%);
    
    -ms-transition: -ms-transform .25s ease-out;
    -ms-transform: translateX(-100%);
    
    -moz-transition: -moz-transform .25s ease-out;
    -moz-transform: translateX(-100%);
    
    -o-transition: -o-transform .25s ease-out;
    -o-transform: translateX(-100%);
}
.side_bar.left.open{
    transform: translateX(0);
    -webkit-transform: translateX(0);
    -ms-transform: translateX(0);
    -moz-transform: translateX(0);
    -o-transform: translateX(0);
}
.side_bar.top{
    transition:transform .25s ease-out;
    transform:translateY(-100%);
    
    -webkit-transition: -webkit-transform .25s ease-out;
    -webkit-transform: translateY(-100%);
    
    -ms-transition: -ms-transform .25s ease-out;
    -ms-transform: translateY(-100%);
    
    -moz-transition: -moz-transform .25s ease-out;
    -moz-transform: translateY(-100%);
    
    -o-transition: -o-transform .25s ease-out;
    -o-transform: translateY(-100%);
    
}
.side_bar.top.open{
    transform: translateY(0);
    -webkit-transform: translateY(0);
    -ms-transform: translateY(0);
    -moz-transform: translateY(0);
    -o-transform: translateY(0);
}
.side_bar.open+div.side_bar_bg{
    display:block;
}
.side_bar_bg{
    position: fixed;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 9998;
    top: 0;
    left:0;
    display:none;
}
/*********************STYLE**********************/
.side_bar{
    height:100%;
    background:#fff;
    width: 70%;
    max-width: 25em;
}