style(list): truncate overflow on h3 and h4
style(list): truncate overflow on h3 and h4

closes #2199

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material,eloytoro/material,bOOm-X/material,flowersinthesand/material,2947721120/angular-material,welkinhealth/material,Antariano/material,profoundry-us/material,Mexiswow/material,Frank3K/material,DerekLouie/material,bluebirdtech/material,colinskow/material,taranjeetsapra/material,eloytoro/material,kamilkisiela/material,hayloft/material,imjoeco/material,clshortfuse/material,colinskow/material,dmitriz/material,rolandoldengarm/material,SamDLT/material,n1vlac/material,franzsilva/material,miguelcobain/material,asonni/material,n1vlac/material,ardas/material,gkalpak/material,franzsilva/material,DevVersion/material,profoundry-us/material,shyndman/material,dmitriz/material,dkemper01/material,Todd-Werelius/material,kwypchlo/material,HipsterZipster/material,theZimmee/angular-material,hodeyp/material,drrezeau/material,vertazzar/material,theZimmee/angular-material,acoreyj/material,ErinCoughlan/material,isaaclyman/material,gmoothart/material,miguelcobain/material,BernhardRode/material,jadjoubran/material,isaaclyman/material,theZimmee/angular-material,dalong123/material,FrankMeyer/material,CarmenPopoviciu/material,taranjeetsapra/material,DerekLouie/material,AladdinSonni/material,drrezeau/material,angular/material,Antariano/material,shyndman/material,HipsterZipster/material,veraksar/material,hodeyp/material,oostmeijer/material,ServiceManagementGroup/material,ilovett/material,DevVersion/material,dlochrie/material