pnt.css

@media only screen and (max-width: 1920px) {
  body, input, textarea {
    font-size: 22;
  }
}
@media only screen and (max-width: 1600px) {
  body, input, textarea {
    font-size: 20;
  }
}
@media only screen and (max-width: 1366px) {
  body, input, textarea {
    font-size: 18;
  }
}
@media only screen and (max-width: 1280px) {
  body, input, textarea {
    font-size: 16;
  }
}
@media only screen and (max-width: 1024px) {
  body, input, textarea {
    font-size: 14;
  }
}

body {
  background-color: black;
}
div {
  background-color: white;
  float: left;
}
input {
  float: left;
}
canvas {
  position: absolute;
  width: 72.5%;
  height: 83%;
  top: 1%;
  left: 0.5%;
}

.black {
  background-color: black;
}

/*left side*/
#paint {
  width: 74%;
  height: 100%;
  background-color: black;
}

#canvas {
  width: 100%;
  height: 85%;
}

#split_line1 {
  width: 100%;
  height: 1%;
}

/*tools*/
#tools {
  width: 100%;
  height: 14%;
}
/*canvas_tools*/
#canvas_tools {
  width: 64%;
  height: 100%;
  text-align: center;
}
/*color*/
#pen_color {
  width: 35%;
  height: 100%;
}
#pen_color div div {
  width: 21%;
  height: 30%;
}
#pen_color div + input {
  width: 45%;
  height: 28%;
}
#pen_color div + input + input {
  width: 22%;
  height: 30%;
}
/*size*/
#pen_size {
  width: 20%;
}
#pen_size div {
  width: 65%;
}
#pen_size input {
  width: 34%;
}
/*canvas special*/
#canvas_special {
  width: 45%;
  height: 100%;
}
#canvas_special input {
  width: 33.3%;
  height: 50%;
}

#split_line2 {
  width: 1%;
  height: 100%;
}

/*seed tool*/
#seed_tool {
  width: 34%;
  height: 100%;
}
#else_seed {
  width: 100%;
}


/*right side*/
#chat {
  width: 26%;
  height: 100%;
}
#chat_box {
  width: 100%;
  height: 76%;
  overflow: auto;
  word-break: break-all;
}
#chat_input {
  width: 100%;
  height: 22%;
}
#chat_input div {
  width: 100%;
  height: 20%;
}
#chat_input div input:first-child {
  width: 40%;
  height: 100%;
}
#chat_input div input:nth-child(n+2) {
  width: 30%;
  height: 100%;
}
#chat_input textarea {
  width: 100%;
  height: 80%;
  overflow: auto;
}
#chat_input > input {
  position: absolute;
  right: 0.5%;
  bottom: 1%;
}


/*question div*/
.question_div {
  position: absolute;
  width: 20%;
  height: 20%;
  border: 1px solid black;
}
.question_div div {
  text-align: center;
  width: 100%;
  height: 50%;
}
.question_div div input {
  position: relative;
  text-align: center;
  width: 40%;
  height: 60%;
  left: 10%;
  top: 20%;
}