/**, *:before, *:after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}*/

main {
    /*min-width: 320px;
    max-width: 800px;*/
    width: 100%;
    padding: 2px;
    margin: 0 auto;
    /*background: #fff;*/
}

section {
    display: none;
    padding: 20px 0 0;
    border-top: 1px solid #ddd;
}

input {
    display: none;
}

label {
    display: inline-block;
    margin: 0 0 -1px;
    padding: 15px 25px;
    font-weight: 600;
    text-align: center;
    color: #bbb;
    border: 1px solid transparent;
}

label:before {
    /*font-family: fontawesome;*/
    font-weight: normal;
    margin-right: 10px;
}

/*label[for*='1']:before { content: '\f1cb'; }
label[for*='2']:before { content: '\f17d'; }
label[for*='3']:before { content: '\f16b'; }
label[for*='4']:before { content: '\f1a9'; }*/

label:hover {
    color: #888;
    cursor: pointer;
}

input:checked + label {
    color: #555;
    /*border: 1px solid #ddd;*/
    border-top: 2px solid #ddd;
    border-left: 2px solid #ddd;
    border-right: 2px solid #ddd;
    border-bottom: 1px solid #f7f8fa;
}

#tab1:checked ~ #content1,
#tab2:checked ~ #content2,
#tab3:checked ~ #content3,
#tab4:checked ~ #content4 {
    display: block;
}

/*@media screen and (max-width: 650px) {
    label {
        font-size: 0;
    }
    label:before {
        margin: 0;
        font-size: 18px;
    }
}

@media screen and (max-width: 400px) {
    label {
        padding: 15px;
    }
}*/