html{
    font-size:12px;
}
*{
    box-sizing: border-box;
}
a{
    text-decoration: none;
}
.hide{
    display: none !important;
}
header{
position: fixed;
top:0px;
left:0px;
right: 0px;
height:50px;
border-bottom: 1px solid #ccc;
}
#container{
    padding-top: 50px;
    display: flex;
    justify-content: flex-start;
}

#container > div{
    flex-grow:1;
    padding: 10px;
}
#container textarea{
    width:100%;
    height: 500px;
}

footer{
    width: 100%;
    height: 50px;
    border-top: 1px solid #ccc;
}