.imgchaidiv{
float:left;
margin:1em ;
margin-left:0em;
}
.imgchai{
width:280px;
text-align:center;
}
.pcno{display:none;}
.smno{display:block;}

@media all and and (min-width:601px ) and (min-width:1024px ){
.imgchaidiv{
float:left;
margin:1em ;
margin-left:0em;
}
.imgchai{
width:260px;
text-align:center;
}
.pcno{display:none;}
.smno{display:block;}
}
/*
@media all and (min-width:901px ) and (max-width:900px ){
.imgchaidiv{
text-align:center;
width:100%;
margin:1em ;
margin-left:0em;
}
.imgchai{
width:280px;
text-align:center;
}
.pcno{display:none;}
.smno{display:block;}
}

@media all and (max-width:800px ){

.imgchaidiv{
float:left;
margin:1em ;
margin-left:0em;
}
.imgchai{
width:280px;
text-align:center;
}
.pcno{display:none;}
.smno{display:block;}
}

@media all and (max-width:600px ){
.imgchaidiv{
text-align:center;
margin:1em ;
margin-left:0em;
width:100%;
}
.imgchai{
width:300px;
text-align:center;
}
.pcno{display:none;}
.smno{display:block;}
}
*/
@media all and (max-width:600px ){
.imgchaidiv{
text-align:center;
margin:1em ;
margin-left:0em;
width:100%;
}
.imgchai{
width:80%;
text-align:center;
}
.pcno{display:block;}
.smno{display:none;}
}

}