* {
    box-sizing: border-box;
}

.canvas{
    border: 2px solid black;
}
.top, .bottom{
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    margin: 20px 0 20px 0;
    
}
.block, input, select, button{
    width: 80%;   
}
.main {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    max-width: 800px; /* Restrict max width */
    width: 90%; /* Make it responsive */
}

.top .block {
    margin: 10px;
}

.bottom>button{
    margin: 10px;
}
.block>p{
    margin: 10px auto;
    width: 50%;
}
.fontsize{
    padding-top: 20px;
   
}
.textpiker{
  
    padding-top: 25px;
}
@media (max-width: 768px) {
    .canvas {
        width: 100%;
        height: auto;
    }
}

.bottom button {
    padding: 10px 15px;
}