@media screen and (min-width: 1000px) {
     .ischezni {
         display: none;
     }
}
.topbutton {
width:100px;
background:#f7f7f7;
text-align:center;
padding:10px;
position:fixed;
    top: 10px;
right:10px;
cursor:pointer;
color:#333;
font-family:verdana;
font-size:12px;
border-radius: 5px;
-moz-border-radius: 5px;
-webkit-border-radius: 5px;
-khtml-border-radius: 5px;
}

.topbutton2 {
    height: 100%;
/*border:2px solid #ccc;*/
background:#f7f7f7;
text-align:center;
position:fixed;
cursor:pointer;
color:#333;
font-family:verdana;
font-size:15px;
display:none;
}

.topbutton2.open {
display:block;  
}