@media only screen and (min-width: 800px) {
.change1{
width:20%;
border:none;
}
.change2{
width:25%;
}
}
@media only screen and (max-width: 799px) {
.change1{
left:0;
right:0;

display: block;
margin: auto;
margin-bottom:20px;
margin-top:-60px;
width:40%;
border:none;
}
.change2{
width:100%;
}
}
@media only screen and (min-width: 800px) {
.pcX{
max-width:30%;
}
}
@media only screen and (max-width: 799px) {
.pcX{
max-width:100%;
}
}