html,body{
    display: inline-block;
    width: 100%;
    height: 100%;
    text-align: center ;
    margin: 0;
}
.all{ 
    display: inline-block;
    width: 10%;
    min-width: 300px; 
    text-align: center ;
    height: 100%;
    position: relative;
    
}
.center{
    text-align: center ;
    display: inline-block;
    top:32%;
    width: 20%;
    min-width: 300px; 
    position: relative;
     
}
.tx{
    display: inline-block;
    padding: 5px;
    text-align: center ;
    width: 20%;
    margin: auto; 
    min-width: 260px;   
}
#dno{
    display: inline-block;
    text-align: center ;
    width: 20%;
    margin: auto; 
    min-width: 260px;
    position: relative;
    top: 60%;
}

.VK{
    display: inline-block;
    padding: 5px;
    width: 150px;
    margin: auto; 
}