.txt-hide{
display: none;
}

.openmenu-color{
background-color: #f7fbfb;
padding:20px;
border: 1px solid #00938e;
}

button.more {
width: 120px;
margin: 20px auto 0px auto;
display: block;
background-color: #1b2d9a;
color: #fff;
padding:10px 15px;
border: none;
outline: 0;
transition: .1s;
-erbkit-transition: .1s;
}
 
button.more::after {
content: "もっと見る";
transition: .1s;
-erbkit-transition: .1s;
}

button.more.on-click::after{
content: "閉じる";
}