body {
    background-color: gray;
}

.offerta {
    border:none;
    padding:8px 16px;
    text-align:center;
    cursor:pointer;
    width:100%;
    height:auto;
    box-sizing: border-box;
    text-decoration: underline;
    font-family: 'Open Sans', sans-serif;
    background: #60a2b3;
    min-height: 50px;

}
    


.title-bar {
    font-family: 'Open Sans', sans-serif;
    background: #339FF6;
    line-height: 50px;
    padding-top: 4px;
    height:auto;
    color: #fff;
    text-transform: uppercase;
    letter-spacing: .075em;
    border-top-left-radius: 5px;
    border-top-right-radius: 5px;
    text-align: center;
    font-size: 26px;
    margin-top: 20%;
}

.content-main {
    background: #cceff0;
    padding: 15px;
    border-bottom-right-radius: 5px;
    border-bottom-left-radius: 5px;
    box-sizing: border-box;
    color:black;
    font-family: 'Open Sans', sans-serif;
    text-align: center;

}
    
.center {
  margin: auto;
    max-width: 750px;
  height: auto;
  padding: 10px;
} 


@keyframes rotate {
    from {
        transform: rotate(0deg);
    }
    to { 
        transform: rotate(360deg);
    }
}
 

 @-webkit-keyframes rotate {
    from {
        -webkit-transform: rotate(0deg);
    }
    to { 
        -webkit-transform: rotate(360deg);
    }
}

.load {
	width: 10px;
	height: 10px;
	margin: 110px auto 0;
	border:solid 10px #339FF6;
	border-radius: 50%;
	border-right-color: transparent;
	border-bottom-color: transparent;
	 -webkit-transition: all 0.5s ease-in;
    -webkit-animation-name:             rotate; 
    -webkit-animation-duration:         1.0s; 
    -webkit-animation-iteration-count:  infinite;
    -webkit-animation-timing-function: linear;
    	
    	 transition: all 0.5s ease-in;
    animation-name:             rotate; 
    animation-duration:         1.0s; 
    animation-iteration-count:  infinite;
    animation-timing-function: linear; 
}

.check {
    font-family: 'Open Sans', sans-serif;
    background: #339FF6;
    height: auto;
    line-height: 40px;
    margin-top: 1%;
    padding-left: 10px;
    color: #fff;
    letter-spacing: .075em;
    border-radius: 8px;
    text-align: center;
    font-size: 17px;
}