html,body{
    min-width: 290px;
    color:black;
    background-color:white;
    font-family: sans-serif;
    line-height: 1.5;
}

#navbar{
    position:fixed;
    min-width: 290px;
    top:0px;
    left:0px;
    width:300px;
    height:100%;
    border-right:solid;
    border-color:black;

}

header{
    color:black;
    margin:10px;
    text-align: center;
    font-size: 1.8em;
    font-weight: thin;
}

#main_doc header{
    text-align: left;
    margin:0px;
}
#navbar ul {
    height:88%;
    padding:0;
    overflow-y: auto;
    overflow-x: hidden;
}
navbar li{
    color:gray;
    border-top: 1px solid;
    list-style: none;
    position:relative;
    width:100%;
}
#navbar a{
    display:block;
    padding:10px 30px;
    color:gray;
    text-decoration: none;
    cursor:pointer;
}

#main_doc{
    position:absolute;
    margin-left: 310px;
    padding: 20px;
    margin-bottom: 110px;

}
section header{
    color:gray;
}
section article{
    color:black;
    margin:15px;
    font-size: 0.96em;
}
section li{
    margin: 15px 0px 0px 20px;
}

code{
    border: 1px dotted black;
    display: block;
    text-align: left;
    white-space: pre-line;
    position: relative;
    word-break: normal;
    word-wrap: normal;
    line-height: 2;
    background-color: rgb(197, 193, 193);
    padding:15px;
    margin:15px;
    border-radius: 5px;
}
#navbar header{
    width:relative;
    border: 1px solid black;
    background-color: gray;
}
/*for mobile*/
@media only screen and (max-width: 815px){
    #navbar ul {
        border : 1px solid;
        height: 207px;

    }

    #navbar{
        background-color: white;
        position:absolute;
        top:0;
        padding:0;
        margin:0;
        width:100%;
        max-height: 275px;
        border:none;
        z-index: 1;
        border-bottom: 2px solid;

    }

   
    #main_doc{
        position: relative;
        margin-left: 0px;
        margin-top: 270px;
    }
}
@media only screen and (max-width:400px){
    #main-doc{
        margin-left: -10px;
    }
    code{
        margin-left: -20px;
        width:100%;
        padding:15px;
        padding-left: 10px;
        padding-right:45px;
        min-width: 233px;
    }
}