.caja_katex1 {
background-color:rgba(250,250,190,0.4);
display: inline-flex;
padding: 8px;
padding-bottom:4px;
border-radius:4px;
border-style: 1px solid;
border-color: black;
box-shadow: 1px 1px;
}

.caja_katex2 {
background-color:rgba(220,220,220,0.5); 
display: inline-flex;
padding: 8px;
padding-bottom:4px;
border-radius:8px;
box-shadow: 1px 1px 1px black;
}

.caja_katex3 {
background-color:rgba(247,223,215,0.5); 
display: inline-flex;
padding: 8px;
padding-bottom:4px;
border-radius:4px;
box-shadow: 2px 2px 1px black;
}

.caja_katex4 {
background-color:rgba(0,163,255,0.3); 
display: inline-flex;
padding: 8px;
padding-bottom:4px;
border-radius:4px;
box-shadow: 2px 2px 1px black;
}

#tool_calculadora {
  width: 35px;
  height: 35px;
  background-image: url("iconos/icono_claro.svg");
}

body.dark #tool_calculadora {
  background-image: url("iconos/icono_oscuro.svg");
}

#tool_desmos {
  width: 35px;
  height: 35px;
  background-image: url("iconos/desmos.png");
}

body.dark #tool_desmos {
  background-image: url("iconos/desmos_oscuro.png");
}