input[name="project-tabs"] {
    display: none;
}

input[name="project-tabs"] + label {
    display: inline-block;
    text-transform: uppercase;
    color: #1E64C8;
    margin-right: 16px;
}

input[name="project-tabs"]:checked + label,
input[name="project-tabs"] + label:hover
{
    border-bottom: 2px solid;
}

input[name="project-tabs"] ~ .tab {
    display: none;
}

#tab-current:checked ~ .tab.content-current,
#tab-past:checked ~ .tab.content-past {
    display: block;
}