textarea {
border: 1px solid #cccccc;
padding: 5px;
font-family: Arial;
font-size: 16px;
color: #132762;
width: calc(100% - 10px);
height: calc(100% - 30px);
resize: none;
}

.opis {
position: relative;
float: top;
width: calc(100% - 20px);
height: calc(100% - 100px);
left: 0px;
}

.poruka {
position: relative;
float: top;
padding: 10px;
margin-top: 6px;
margin-bottom: 6px;
font-family: Arial;
font-size: 18px;
color: #132762;
text-align: center;
}

.button {
position: relative;
float: top;
width: 100px;
background-color: #4caf50;
font-family: Arial;
font-size: 18px;
font-weight: bold;
color: #132762;
text-align: center;
border: 1px solid #cccccc;
padding: 10px;
margin-left: 30px;
margin-right: 30px;
margin-top: 30px;
margin-bottom: 20px;
}
.button_red {
position: relative;
float: top;
width: 100px;
background-color: #d10b04;
font-family: Arial;
font-size: 18px;
font-weight: bold;
color: #f3f571;
text-align: center;
border: 1px solid #cccccc;
padding: 10px;
margin-left: 30px;
margin-right: 30px;
margin-top: 30px;
margin-bottom: 20px;
}
.button:hover {
background-color: #66ff66;
}

.button_red:hover {
background-color: #fc0505;
}
.container_right {
position: relative;
float: top;
width: 100%;
height: calc(100% - 160px);
background-color: transparent;
padding: 10px;
font-family: Arial;
font-size: 16px;
color: #132762;
}


.button_pad {
min-width: 200px;
position: relative;
width: 100%;
//left: 50%;
float: top;
  display: flex;
  justify-content: center;
  align-items: center;
}

.header {
position: relative;
float: top;
display: flex;
justify-content: center;
align-items: center;
}

div#maska {
background-color: white;
opacity: 0.9;
position: absolute;
top: 10px;
width: 50%;
left: 50%;
height: 98%;
min-width: 410px;
  -ms-transform: translateX(-50%);
  transform: translateX(-50%);
}

@media screen and (min-width: 410px) and (max-width: 720px){
div#maska  {width:410px}
*{font-size:16px!important}

}

.modal {
display: none;
position: fixed;
z-index: 1;
left: 0;
top: 0;
width: 100%;
height: 100%;
overflow: auto;
background-color: #000000;
opacity: 0.9;
}
.modal-content {
border: 2px solid #888888;
margin: auto;
padding: 30px;
position: relative;
background-color: #fefefe;
top: 30%;
width: 50%;
font-size: 18px;
font-family: Arial;
color: #132762;
text-align: center;
}
.close {
color: #aaaaaa;
float: right;
font-size: 28px;
font-weight: bold;
}
.close:hover, .close:focus {
color: #000000;
text-decoration: none;
cursor: pointer;
}
body {
background: white url(images/background4.jpg) no-repeat fixed center;
-webkit-background-size: cover;
-moz-background-size: cover;
-o-background-size: cover;
background-size: cover;
z-index: -2;
}

/* Clear floats after the columns */
section:after {
  content: "";
  display: table;
  clear: both;
}