body {
    counter-reset: number 0;
    background: #f8fafc;
}
article{
	max-width:720px;
	margin:0 auto;
}
input[type="number"]::-webkit-outer-spin-button, 
input[type="number"]::-webkit-inner-spin-button { 
  -webkit-appearance: none; 
  margin: 0; 
} 
h3 {
    font-weight: normal;
    padding-bottom: .8em;
}
.col_sim {
/*    display: flex;
    align-items: center;*/
    justify-content: center;
    padding: 3.5em 2em 2em;
    background-color: #d4ebff;
    margin-bottom:2em;
    position: relative;
    text-align:center;
}
.col_sim.target_on {
    background-color: #fff5a8;
}
.col_sim.target_on:before {
    background-color: #f4cc18;
    color:#333;
}
.col_item {
    margin-right: 1em;
}
.col_sim:before {
	content: "Step" counter(number);
    display: block;
    width: 100%;
    padding: 0 0 1em 0;
    position: absolute;
    top: 0;
    left: 0;
    text-align: center;
    counter-increment: number 1;
    background-color: #0962bd;
    color: #fff;
    clip-path: polygon(0 0, 100% 0, 100% 70%, 55% 70%, 50% 100%, 45% 70%, 0 70%);
}
.col_item.page_fig {
    border: 1px solid #000;
    padding: 3em 1em;
    background-color: #fff;
    position: relative;
}
.col_item.page_fig .caption_page {
    position: absolute;
    top: 0;
    left: 5%;
    font-size: .7rem;
}
.col_item.page_fig .fig_inner {
    background-color: #99ccff;
    padding: .5em 1em;
}
.col_item.page_fig label {
    display: block;
    font-size: .7rem;
    text-align: center;
    line-height: 1.1;
}
.col_item input {
    width: 3em;
    font-size: 1.6rem;
}
.col_item.page_fig input {
    width: 2em;
}
.link_btn.calc{
	margin:0 auto;
	font-size: 1.2rem;
	padding: .5em 1.5em;
	border:0;
}
.annotation{
	font-size:.85rem;
	color:#999;
	padding:1em 0;
}
.col_btn .link_btn{
	margin:0 auto;
}
    .result {
      margin-top: 10px;
    color: #999;
    font-size: .85rem;
    line-height: 1.4em;
    padding-bottom: 1em;
    }
    .message {
      margin-top: 5px;
    font-weight: bold;
    color: #0962bd;
    }
    .error {
      color: #c00;
      margin-top: 10px;
    }
	.message .link_btn {
		font-weight: normal;
		padding: .5em 1.5em;
		font-size: 1.2rem;
		width: 100%;
		box-sizing: border-box;
		text-align: center;
		margin: 1em 0 0;
	}


@media screen and (max-width:600px){
	.col_sim {
/*		padding: 2em 1em;*/
	}
	.col_item:last-child {
		margin-right: 0;
	}
	.link_btn.calc{
		font-size: 1.4rem;
	}
	.message {
		font-size: 1.2rem;
		line-height: 1.6;
	}
}